The TS-251D integrates secure data storage & multimedia entertainment into one device. Featuring a PCIe slot, the TS-251D means that you can flexibly extend NAS functionality & potential applications. You can enhance overall system performance by installing a QNAP QM2 card for M.2 SSD caching/10 Gb E connectivity combined with Qtier auto-tiering storage & installing a 10 Gb E/5 Gb E/2.5 Gb E network expansion card. In addition, TS-251D can be used with QNAP&153;s smart AI photo management application, Qu Magie, which integrates AI image recognition to group similar photos together in album &156; People&157;, &156; Things&157; & &156; Places&157;. The TS-251D features an HDMI slot to stream multimedia throughout your home. The TS-251D supports dual-channel hardware decoding & transcoding, allowing you to view NAS media files smoothly across various devices.nn Intel&174; Celeron&174; J4005 Dual-Core Processor & AES-NI Hardware Encryptionn Powered by Intel&174; Celeron&174; J4005 dual-core 2.0 GHz processor (burst up to 2.7 GHz), DDR4 RAM (up to 8 GB), one Gigabit LAN port, & supports SATA 6 Gb/s hard drives, the TS-251D combines network expansion cards to create dependable read/write performance. The TS-251D features Intel&174; AES-NI 256 hardware-accelerated encryption for both full NAS volumes & shared folders, boosting system performance while securing sensitive data stored in the TS-251D.nn Smart AI Photo Managementn Qu Magie integrates Qu Magie Core AI image recognition technology for facial recognition, subject identification, & geotagging photos. Similar photos are categorized into People, Places, & Things albums. Moreover, Qu Magie features a built-in timeline scroll, customizable folder covers, i OS&174; Live Photo display & a powerful search tool, to provide you with the ultimate photo management & image sharing solution.nn Real-Time 4K Video Transcodingn Featuring advanced Intel&174; UHD Graphics, the TS-251D supports dual-channel 4K hardware decoding & real-time transcoding, allowing you to convert videos to universal file formats that can be smoothly played across various devices*. You can also watch high-quality 4K media files on an HDTV using the HDMI output or with Plex&174; Media Server to stream media files to mobile devices & media streaming devices (including DLNA&174;, Roku&174;, Apple TV&174; (via Qmedia), Amazon Fire TV&174; & Chromecast&132;&162;). The QNAP RM-IR004 remote control (sold separately) can be configured using QButton to customize individual button actions, providing a more user-friendly NAS experience.nn Multiple Ways To Enjoy Your Multimedian QNAP provides a wide range of multimedia applications for you to easily enjoy photos, music, & videos.nn Easy & Secure File Managementn File Station centralizes files stored on your TS-251D & in the cloud. You can easily upload files from your computer, drag & drop files between folders, rename files, delete files, & configure file & folder permissions to prevent unauthorized access. Moreover, with Microsoft Office Online you can open & modify Microsoft Office documents stored on the TS-251D, without having to download Word documents, Excel worksheets, & Power Point presentations from your NAS to the PC. When it comes to sharing sensitive or confidential files on the TS-251D, you can use File Station to enhance data security effectively by encrypting files into a. qenc file, set a password, & then have file recipients use QENC Decrypter to decrypt the sent file.nn Multi-Point File Backup, Access, & Syncn The TS-251D stores data & files centrally, & supports file sharing protocols, including SMB/CIFS, AFP & NFS for Windows&174;, Mac&174;, & Linux&174;/UNIX&174; devices. Coupled with Qsync (a utility that transforms a QNAP NAS into a secure, high-capacity data center for file synchronization) any file uploaded to the TS-251D becomes available for all linked devices, such as computers, laptops, & mobile devices. Hybrid Backup Sync helps you easily backup or synchronize data on the TS-251D to another QNAP NAS, remote servers, or cloud storage for disaster recovery. in addition, Qu Dedup technology greatly improves the efficiency of multi-version backup to the destination storage, while optimizing storage utilization. You can install the Qu Dedup Extract Tool on your computer & restore deduplicated files to their normal status.nn Protect Important Data With Snapshotsn Snapshots help protect your data by fully recording the NAS system state & metadata. You can use snapshots to quickly restore files to a previously-recorded state when files are accidentally deleted or modified, or when the system is compromised by ransomware. QNAP snapshots are block-based & only record modified data. Not only does this save storage space, but also reduces the time required to back up & restore data.nn Extend NAS Functionality With The PCIe Slotn With a PCIe expansion Gen 2.0 x 4 slot, the TS-251D provides flexibility in extending NAS functionality & potential applications. To optimize system performance, install a QNAP QM2 card for M.2 SSD caching/10 Gb E connectivity & use with Qtier tiered storage for optimal system performance. You can also use the TS-251D as a wireless access point by installing a compatible QNAP QWA-AC2600 wireless network card to create a wireless media streaming environment. Moreover, by configuring the QXG-10 Gb E/5 Gb E network expansion cards, you can upgrade your network to high-speed connectivity with an existing CAT 5e cable. Alternatively, you can add an affordable QNAP QNA-UC5G1T USB (Universal Serial Bus) 3.2 Gen 1 to 5 Gb E adapter to your TS-251D & laptop to enjoy higher network speeds, or boost the USB (Universal Serial Bus) connectivity of the TS-251D by installing a USB (Universal Serial Bus) 3.2 Gen 2 (10 Gbps) card.nn QVR Pro Safeguards Your Environmentn QNAP&153;s QVR Pro surveillance solution means that you can arrange dedicated, independent storage space for surveillance data on the TS-251D & leverages scalable storage advantages. With QVR Pro, camera management, storage space allocation, camera live view, & playback is greatly simplified. You can also use USB (Universal Serial Bus) webcams as network cameras with the QUSBCam 2 app, & remotely monitor surveillance feeds anytime with QVR Pro Client mobile app.nn Multiply Your Productivityn The app-driven QTS operating system provides solutions for simplifying file backup, management, search, & more.nn Qmail Agentn Centrally manage & switch between different email accounts, back up emails to the NAS, & safeguard email security & personal privacy.nn Notes Station 3n Notes Station 3 can bring the advantages of collaborative note-taking with enhanced productivity to provide higher efficiency for your workgroup.nn Smart Filingn Qfiling automates file organization. Files are automatically archived into folders based on your settings.nn Full-Text Searchn Qsirch quickly finds images, music, videos, documents, emails, & other files.nn Flexible & Economical Storage Expansionn QNAP provides an easy & flexible solution for increasing storage capacity before you run out of storage space. Here are the following ways you can expand NAS storage for accommodating data & business growth:nn Upgrade RAID Capacityn Hot-swap lower-capacity drives with larger-capacity drives for your QNAP NAS to grow with your business.nn VJBODn Use Virtual JBOD (VJBOD) to expand storage capacity by using unused storage in other QNAP NAS. Up to 8 QNAP NAS can be mounted as local disks on the TS-251D.nn Attach Expansion Enclosuresn Easily expand NAS capacity by connecting two TR-002, TR-004 USB (Universal Serial Bus) hardware RAID external enclosures with QNAP&153;s Storage & Snapshots Manager application.\n\n\n\n\n\n\n\n\n\n Model: TS-251D\n\n Datasheet: http://objects.icecat.biz/objects/mmo_81627340_1599505004_0288_24484.pdf\n\n\n\n Manual: http://objects.icecat.biz/objects/mmo_81627340_1599505004_5366_7693.pdf\n\n\n\n\n\n\n\n ...

The TS-251D integrates secure data storage & multimedia entertainment into one device. Featuring a PCIe slot, the TS-251D means that you can flexibly extend NAS functionality & potential applications. You can enhance overall system performance by installing a QNAP QM2 card for M.2 SSD caching/10 Gb E connectivity combined with Qtier auto-tiering storage & installing a 10 Gb E/5 Gb E/2.5 Gb E network expansion card. In addition, TS-251D can be used with QNAP&153;s smart AI photo management application, Qu Magie, which integrates AI image recognition to group similar photos together in album &156; People&157;, &156; Things&157; & &156; Places&157;. The TS-251D features an HDMI slot to stream multimedia throughout your home. The TS-251D supports dual-channel hardware decoding & transcoding, allowing you to view NAS media files smoothly across various devices.nn Intel&174; Celeron&174; J4005 Dual-Core Processor & AES-NI Hardware Encryptionn Powered by Intel&174; Celeron&174; J4005 dual-core 2.0 GHz processor (burst up to 2.7 GHz), DDR4 RAM (up to 8 GB), one Gigabit LAN port, & supports SATA 6 Gb/s hard drives, the TS-251D combines network expansion cards to create dependable read/write performance. The TS-251D features Intel&174; AES-NI 256 hardware-accelerated encryption for both full NAS volumes & shared folders, boosting system performance while securing sensitive data stored in the TS-251D.nn Smart AI Photo Managementn Qu Magie integrates Qu Magie Core AI image recognition technology for facial recognition, subject identification, & geotagging photos. Similar photos are categorized into People, Places, & Things albums. Moreover, Qu Magie features a built-in timeline scroll, customizable folder covers, i OS&174; Live Photo display & a powerful search tool, to provide you with the ultimate photo management & image sharing solution.nn Real-Time 4K Video Transcodingn Featuring advanced Intel&174; UHD Graphics, the TS-251D supports dual-channel 4K hardware decoding & real-time transcoding, allowing you to convert videos to universal file formats that can be smoothly played across various devices*. You can also watch high-quality 4K media files on an HDTV using the HDMI output or with Plex&174; Media Server to stream media files to mobile devices & media streaming devices (including DLNA&174;, Roku&174;, Apple TV&174; (via Qmedia), Amazon Fire TV&174; & Chromecast&132;&162;). The QNAP RM-IR004 remote control (sold separately) can be configured using QButton to customize individual button actions, providing a more user-friendly NAS experience.nn Multiple Ways To Enjoy Your Multimedian QNAP provides a wide range of multimedia applications for you to easily enjoy photos, music, & videos.nn Easy & Secure File Managementn File Station centralizes files stored on your TS-251D & in the cloud. You can easily upload files from your computer, drag & drop files between folders, rename files, delete files, & configure file & folder permissions to prevent unauthorized access. Moreover, with Microsoft Office Online you can open & modify Microsoft Office documents stored on the TS-251D, without having to download Word documents, Excel worksheets, & Power Point presentations from your NAS to the PC. When it comes to sharing sensitive or confidential files on the TS-251D, you can use File Station to enhance data security effectively by encrypting files into a. qenc file, set a password, & then have file recipients use QENC Decrypter to decrypt the sent file.nn Multi-Point File Backup, Access, & Syncn The TS-251D stores data & files centrally, & supports file sharing protocols, including SMB/CIFS, AFP & NFS for Windows&174;, Mac&174;, & Linux&174;/UNIX&174; devices. Coupled with Qsync (a utility that transforms a QNAP NAS into a secure, high-capacity data center for file synchronization) any file uploaded to the TS-251D becomes available for all linked devices, such as computers, laptops, & mobile devices. Hybrid Backup Sync helps you easily backup or synchronize data on the TS-251D to another QNAP NAS, remote servers, or cloud storage for disaster recovery. in addition, Qu Dedup technology greatly improves the efficiency of multi-version backup to the destination storage, while optimizing storage utilization. You can install the Qu Dedup Extract Tool on your computer & restore deduplicated files to their normal status.nn Protect Important Data With Snapshotsn Snapshots help protect your data by fully recording the NAS system state & metadata. You can use snapshots to quickly restore files to a previously-recorded state when files are accidentally deleted or modified, or when the system is compromised by ransomware. QNAP snapshots are block-based & only record modified data. Not only does this save storage space, but also reduces the time required to back up & restore data.nn Extend NAS Functionality With The PCIe Slotn With a PCIe expansion Gen 2.0 x 4 slot, the TS-251D provides flexibility in extending NAS functionality & potential applications. To optimize system performance, install a QNAP QM2 card for M.2 SSD caching/10 Gb E connectivity & use with Qtier tiered storage for optimal system performance. You can also use the TS-251D as a wireless access point by installing a compatible QNAP QWA-AC2600 wireless network card to create a wireless media streaming environment. Moreover, by configuring the QXG-10 Gb E/5 Gb E network expansion cards, you can upgrade your network to high-speed connectivity with an existing CAT 5e cable. Alternatively, you can add an affordable QNAP QNA-UC5G1T USB (Universal Serial Bus) 3.2 Gen 1 to 5 Gb E adapter to your TS-251D & laptop to enjoy higher network speeds, or boost the USB (Universal Serial Bus) connectivity of the TS-251D by installing a USB (Universal Serial Bus) 3.2 Gen 2 (10 Gbps) card.nn QVR Pro Safeguards Your Environmentn QNAP&153;s QVR Pro surveillance solution means that you can arrange dedicated, independent storage space for surveillance data on the TS-251D & leverages scalable storage advantages. With QVR Pro, camera management, storage space allocation, camera live view, & playback is greatly simplified. You can also use USB (Universal Serial Bus) webcams as network cameras with the QUSBCam 2 app, & remotely monitor surveillance feeds anytime with QVR Pro Client mobile app.nn Multiply Your Productivityn The app-driven QTS operating system provides solutions for simplifying file backup, management, search, & more.nn Qmail Agentn Centrally manage & switch between different email accounts, back up emails to the NAS, & safeguard email security & personal privacy.nn Notes Station 3n Notes Station 3 can bring the advantages of collaborative note-taking with enhanced productivity to provide higher efficiency for your workgroup.nn Smart Filingn Qfiling automates file organization. Files are automatically archived into folders based on your settings.nn Full-Text Searchn Qsirch quickly finds images, music, videos, documents, emails, & other files.nn Flexible & Economical Storage Expansionn QNAP provides an easy & flexible solution for increasing storage capacity before you run out of storage space. Here are the following ways you can expand NAS storage for accommodating data & business growth:nn Upgrade RAID Capacityn Hot-swap lower-capacity drives with larger-capacity drives for your QNAP NAS to grow with your business.nn VJBODn Use Virtual JBOD (VJBOD) to expand storage capacity by using unused storage in other QNAP NAS. Up to 8 QNAP NAS can be mounted as local disks on the TS-251D.nn Attach Expansion Enclosuresn Easily expand NAS capacity by connecting two TR-002, TR-004 USB (Universal Serial Bus) hardware RAID external enclosures with QNAP&153;s Storage & Snapshots Manager application.\n\n\n\n Product ID: TS-251D-2G/16TB-IW\n\n\n\n\n\n Model: TS-251D\n\n Datasheet: http://objects.icecat.biz/objects/mmo_77972425_1583778445_1719_13766.pdf\n\n\n\n Manual: http://objects.icecat.biz/objects/mmo_77972425_1583778446_7521_3265.pdf\n\n\n\n\n\n\n\n ...

The TS-251D integrates secure data storage & multimedia entertainment into one device. Featuring a PCIe slot, the TS-251D means that you can flexibly extend NAS functionality & potential applications. You can enhance overall system performance by installing a QNAP QM2 card for M.2 SSD caching/10 Gb E connectivity combined with Qtier auto-tiering storage & installing a 10 Gb E/5 Gb E/2.5 Gb E network expansion card. In addition, TS-251D can be used with QNAP&153;s smart AI photo management application, Qu Magie, which integrates AI image recognition to group similar photos together in album &156; People&157;, &156; Things&157; & &156; Places&157;. The TS-251D features an HDMI slot to stream multimedia throughout your home. The TS-251D supports dual-channel hardware decoding & transcoding, allowing you to view NAS media files smoothly across various devices.\n \n Intel&174; Celeron&174; J4005 Dual-Core Processor & AES-NI Hardware Encryption\n Powered by Intel&174; Celeron&174; J4005 dual-core 2.0 GHz processor (burst up to 2.7 GHz), DDR4 RAM (up to 8 GB), one Gigabit LAN port, & supports SATA 6 Gb/s hard drives, the TS-251D combines network expansion cards to create dependable read/write performance. The TS-251D features Intel&174; AES-NI 256 hardware-accelerated encryption for both full NAS volumes & shared folders, boosting system performance while securing sensitive data stored in the TS-251D.\n \n Smart AI Photo Management\n Qu Magie integrates Qu Magie Core AI image recognition technology for facial recognition, subject identification, & geotagging photos. Similar photos are categorized into People, Places, & Things albums. Moreover, Qu Magie features a built-in timeline scroll, customizable folder covers, i OS&174; Live Photo display & a powerful search tool, to provide you with the ultimate photo management & image sharing solution.\n \n Real-Time 4K Video Transcoding\n Featuring advanced Intel&174; UHD Graphics, the TS-251D supports dual-channel 4K hardware decoding & real-time transcoding, allowing you to convert videos to universal file formats that can be smoothly played across various devices*. You can also watch high-quality 4K media files on an HDTV using the HDMI output or with Plex&174; Media Server to stream media files to mobile devices & media streaming devices (including DLNA&174;, Roku&174;, Apple TV&174;, Amazon Fire TV&174; & Chromecast&132;&162;). The QNAP RM-IR004 remote control (sold separately) can be configured using QButton to customize individual button actions, providing a more user-friendly NAS experience.\n * The TS-251D&153;s hardware provides hardware decoding, encoding, & transcoding capabilities. However, playback quality may vary due to playback software, file formats, system usage, & available bandwidth.\n \n Multiple Ways To Enjoy Your Multimedia\n QNAP provides a wide range of multimedia applications for you to easily enjoy photos, music, & videos.\n \n Easy & Secure File Management\n File Station centralizes files stored on your TS-251D & in the cloud. You can easily upload files from your computer, drag & drop files between folders, rename files, delete files, & configure file & folder permissions to prevent unauthorized access. Moreover, with Microsoft Office Online you can open & modify Microsoft Office documents stored on the TS-251D, without having to download Word documents, Excel worksheets, & Power Point presentations from your NAS to the PC. When it comes to sharing sensitive or confidential files on the TS-251D, you can use File Station to enhance data security effectively by encrypting files into a. qenc file, set a password, & then have file recipients use QENC Decrypter to decrypt the sent file.\n \n Multi-Point File Backup, Access, & Sync\n The TS-251D stores data & files centrally, & supports file sharing protocols, including SMB/CIFS, AFP & NFS for Windows&174;, Mac&174;, & Linux&174;/UNIX&174; devices. Coupled with Qsync (a utility that transforms a QNAP NAS into a secure, high-capacity data center for file synchronization) any file uploaded to the TS-251D becomes available for all linked devices, such as computers, laptops, & mobile devices. Hybrid Backup Sync helps you easily backup or synchronize data on the TS-251D to another QNAP NAS, remote servers, or cloud storage for disaster recovery. in addition, Qu Dedup technology greatly improves the efficiency of multi-version backup to the destination storage, while optimizing storage utilization. You can install the Qu Dedup Extract Tool on your computer & restore deduplicated files to their normal status.\n \n Protect Important Data With Snapshots\n Snapshots help protect your data by fully recording the NAS system state & metadata. You can use snapshots to quickly restore files to a previously-recorded state when files are accidentally deleted or modified, or when the system is compromised by ransomware. QNAP snapshots are block-based & only record modified data. Not only does this save storage space, but also reduces the time required to back up & restore data.\n \n Extend NAS Functionality With The PCIe Slot\n With a PCIe expansion Gen 2.0 x 4 slot, the TS-251D provides flexibility in extending NAS functionality & potential applications. To optimize system performance, install a QNAP QM2 card for M.2 SSD caching/10 Gb E connectivity & use with Qtier tiered storage for optimal system performance. You can also use the TS-251D as a wireless access point by installing a compatible QNAP QWA-AC2600 wireless network card to create a wireless media streaming environment. Moreover, by configuring the QXG-10 Gb E/5 Gb E network expansion cards, you can upgrade your network to high-speed connectivity with an existing CAT 5e cable. Alternatively, you can add an affordable QNAP QNA-UC5G1T USB (Universal Serial Bus) 3.0 to 5 Gb E adapter to your TS-251D & laptop to enjoy higher network speeds, or boost the USB (Universal Serial Bus) connectivity of the TS-251D by installing a USB (Universal Serial Bus) 3.1 Gen 2 (10 Gbps) card.\n \n QVR Pro Safeguards Your Environment\n QNAP&153;s QVR Pro surveillance solution means that you can arrange dedicated, independent storage space for surveillance data on the TS-251D & leverages scalable storage advantages. With QVR Pro, camera management, storage space allocation, camera live view, & playback is greatly simplified. You can also use USB (Universal Serial Bus) webcams as network cameras with the QUSBCam 2 app, & remotely monitor surveillance feeds anytime with QVR Pro Client mobile app.\n \n Multiply Your Productivity\n The app-driven QTS operating system provides solutions for simplifying file backup, management, search, & more.\n \n Flexible & Economical Storage Expansion\n QNAP provides an easy & flexible solution for increasing storage capacity before you run out of storage space. Here are the following ways you can expand NAS storage for accommodating data & business growth:\n \n Upgrade RAID Capacity\n Hot-swap lower-capacity drives with larger-capacity drives for your QNAP NAS to grow with your business.\n \n VJBOD\n Use Virtual JBOD (VJBOD) to expand storage capacity by using unused storage in other QNAP NAS. Up to 8 QNAP NAS can be mounted as local disks on the TS-251D.\n \n Attach Expansion Enclosures\n Easily expand NAS capacity by connecting two TR-002, TR-004 USB (Universal Serial Bus) hardware RAID external enclosures or TL-D800C USB (Universal Serial Bus) JBOD enclosures with QNAP&153;s Storage & Snapshots Manager application.\n\n Storage Online RAID migration Yes Online RAID expansion Yes Storage drives installed No Installed storage drive type No Supported storage drive types HDD & SSDNumber of storage drives supported 2 Hot-swap drive bays Yes RAID support Yes Supported file systems FAT32, HFS+, NTFS, ext 3, ext 4RAID levels 0, 1, JBODSupported storage drive interfaces Serial ATA IIIStorage drive sizes supported 3.5" Number of M.2 (M & B) slots 1RAID rebuild Yes Processor Processor operating modes 64-bit Processor boost frequency 2.7 GHz On-board graphics adapter model Intel&174; UHD Graphics 600 Processor frequency 2 GHz Processor family Intel&174; Celeron&174; Processor model J4005 Processor cores 2 Memory Internal memory type DDR4 Internal memory 2 GBMaximum RAM supported 8 GBMemory slots 2 Flash memory 4000 MBMemory form factor SO-DIMMNetwork Link aggregation Yes Ethernet LANYes Ethernet LAN data rates 1000 Mbit/s Wi-Fi No Wake-on-LAN ready Yes Supported network protocols TCP/IP, PTP, L2TP/IPSec, Open VPN, QBelt (, FTP, SFTP, TFTPJumbo frames support Yesi SCSI support Yes DHCP server Yes DHCP client Yes WLAN adapter supported Yes Ports & interfaces USB port Yes USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity 2HDMI version 2.0USB 2.0 ports quantity 3HDMI ports quantity 1 Ethernet LAN (RJ-45) ports 1 Hard drive RAID support Yes Supported file systems FAT32, HFS+, NTFS, ext 3, ext 4RAID levels 0, 1, JBODGraphics On-board graphics adapter model Intel&174; UHD Graphics 600 Design Cooling type Active Fan diameter 7 cm Cable lock slot type Kensington Product colour White Number of fans 1 fan (s)LED indicators HDD, LAN, Power, Status, USBChassis type Tower Cable lock slot Yes Technical details Type NASDevice class Home & Home Office Backup function Yes Backup features Cloud Product colour White Noise level 16.7 d B Multilingual support Yes LED indicators HDD, LAN, Power, Status, USBChassis type Tower Buzzer Yes Number of fans 1 fan (s) Performance Built-in FTP server Yes System log Yes Share folder CIFS/SMBS.M.A.R.T. support Yes Hot spare Yes Browser supported Apple Safari 7+, Google Chrome, Microsoft Internet Explorer 10+, Mozilla Firefox Type NASDevice class Home & Home Office Backup function Yes Backup features Cloud On/off switch Yes Windows operating systems supported Windows 10, Windows 7, Windows 8 Server operating systems supported Windows Server 2003, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016, Windows Server 2019 Mac operating systems supported Mac OS X 10.10 Yosemite, Mac OS X 10.11 El Capitan, Mac OS X 10.12 Sierra, Mac OS X 10.13 High Sierra, Mac OS X 10.14 Mojave, Mac OS X 10.15 Catalina, Mac OS X 10.7 Lion, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks Linux operating systems supported Yes Web-based management Yes Security algorithms 256-bit AES, FIPS 140-2, HTTPS, SNMPv 3, SSH, SSL/TLSReset button Yes Operating system version 4.4.1 Operating system installed QNAP Turbo System Noise level 16.7 d B Multilingual support Yes Buzzer Yes Access Control List (ACL) Yes Third-party support Yes Snapshot Yes USB copy function Yes Cooling Cooling type Active Fan diameter 7 cm Number of fans 1 fan (s) Security Cable lock slot type Kensington Security algorithms 256-bit AES, FIPS 140-2, HTTPS, SNMPv 3, SSH, SSL/TLSCable lock slot Yes Access Control List (ACL) Yes Software Windows operating systems supported Windows 10, Windows 7, Windows 8 Server operating systems supported Windows Server 2003, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016, Windows Server 2019 Mac operating systems supported Mac OS X 10.10 Yosemite, Mac OS X 10.11 El Capitan, Mac OS X 10.12 Sierra, Mac OS X 10.13 High Sierra, Mac OS X 10.14 Mojave, Mac OS X 10.15 Catalina, Mac OS X 10.7 Lion, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks Linux operating systems supported Yes Operating system version 4.4.1 Operating system installed QNAP Turbo System Management features On/off switch Yes Web-based management Yes Reset button Yes Power Power supply location External Power supply unit (PSU) capacity 65 WAC input voltage 100
- 240 VPower consumption (typical)15.25 WPower consumption (sleep)8.08 WNumber of power supply units 1 External power adapter Yes Weight & dimensions Width 105 mm Depth 226 mm Height 168 mm Weight 1.48kg Package weight 2.58kg Packaging content Quick installation guide Yes External power adapter Yes Cables included AC, LAN (RJ-45) System requirements Windows operating systems supported Windows 10, Windows 7, Windows 8 Server operating systems supported Windows Server 2003, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016, Windows Server 2019 Mac operating systems supported Mac OS X 10.10 Yosemite, Mac OS X 10.11 El Capitan, Mac OS X 10.12 Sierra, Mac OS X 10.13 High Sierra, Mac OS X 10.14 Mojave, Mac OS X 10.15 Catalina, Mac OS X 10.7 Lion, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks Linux operating systems supported Yes Operational conditions Operating temperature (T-T)0
- 40 &176;COperating relative humidity (H-H)5
- 95% Packaging data Package weight 2.58kg Cables included AC, LAN (RJ-45)\n\n\n\n


...

The TS-251D integrates secure data storage & multimedia entertainment into one device. Featuring a PCIe slot, the TS-251D means that you can flexibly extend NAS functionality & potential applications. You can enhance overall system performance by installing a QNAP QM2 card for M.2 SSD caching/10 Gb E connectivity combined with Qtier auto-tiering storage & installing a 10 Gb E/5 Gb E/2.5 Gb E network expansion card. In addition, TS-251D can be used with QNAP&153;s smart AI photo management application, Qu Magie, which integrates AI image recognition to group similar photos together in album &156; People&157;, &156; Things&157; & &156; Places&157;. The TS-251D features an HDMI slot to stream multimedia throughout your home. The TS-251D supports dual-channel hardware decoding & transcoding, allowing you to view NAS media files smoothly across various devices. Intel&174; Celeron&174; J4005 Dual-Core Processor & AES-NI Hardware Encryption Powered by Intel&174; Celeron&174; J4005 dual-core 2.0 GHz processor (burst up to 2.7 GHz), DDR4 RAM (up to 8 GB), one Gigabit LAN port, & supports SATA 6 Gb/s hard drives, the TS-251D combines network expansion cards to create dependable read/write performance. The TS-251D features Intel&174; AES-NI 256 hardware-accelerated encryption for both full NAS volumes & shared folders, boosting system performance while securing sensitive data stored in the TS-251D. Smart AI Photo Management Qu Magie integrates Qu Magie Core AI image recognition technology for facial recognition, subject identification, & geotagging photos. Similar photos are categorized into People, Places, & Things albums. Moreover, Qu Magie features a built-in timeline scroll, customizable folder covers, i OS&174; Live Photo display & a powerful search tool, to provide you with the ultimate photo management & image sharing solution. Real-Time 4K Video Transcoding Featuring advanced Intel&174; UHD Graphics, the TS-251D supports dual-channel 4K hardware decoding & real-time transcoding, allowing you to convert videos to universal file formats that can be smoothly played across various devices*. You can also watch high-quality 4K media files on an HDTV using the HDMI output or with Plex&174; Media Server to stream media files to mobile devices & media streaming devices (including DLNA&174;, Roku&174;, Apple TV&174; (via Qmedia), Amazon Fire TV&174; & Chromecast&132;&162;). The QNAP RM-IR004 remote control (sold separately) can be configured using QButton to customize individual button actions, providing a more user-friendly NAS experience. Multiple Ways To Enjoy Your Multimedia QNAP provides a wide range of multimedia applications for you to easily enjoy photos, music, & videos. Easy & Secure File Management File Station centralizes files stored on your TS-251D & in the cloud. You can easily upload files from your computer, drag & drop files between folders, rename files, delete files, & configure file & folder permissions to prevent unauthorized access. Moreover, with Microsoft Office Online you can open & modify Microsoft Office documents stored on the TS-251D, without having to download Word documents, Excel worksheets, & Power Point presentations from your NAS to the PC. When it comes to sharing sensitive or confidential files on the TS-251D, you can use File Station to enhance data security effectively by encrypting files into a. qenc file, set a password, & then have file recipients use QENC Decrypter to decrypt the sent file. Multi-Point File Backup, Access, & Sync The TS-251D stores data & files centrally, & supports file sharing protocols, including SMB/CIFS, AFP & NFS for Windows&174;, Mac&174;, & Linux&174;/UNIX&174; devices. Coupled with Qsync (a utility that transforms a QNAP NAS into a secure, high-capacity data center for file synchronization) any file uploaded to the TS-251D becomes available for all linked devices, such as computers, laptops, & mobile devices. Hybrid Backup Sync helps you easily backup or synchronize data on the TS-251D to another QNAP NAS, remote servers, or cloud storage for disaster recovery. in addition, Qu Dedup technology greatly improves the efficiency of multi-version backup to the destination storage, while optimizing storage utilization. You can install the Qu Dedup Extract Tool on your computer & restore deduplicated files to their normal status. Protect Important Data With Snapshots Snapshots help protect your data by fully recording the NAS system state & metadata. You can use snapshots to quickly restore files to a previously-recorded state when files are accidentally deleted or modified, or when the system is compromised by ransomware. QNAP snapshots are block-based & only record modified data. Not only does this save storage space, but also reduces the time required to back up & restore data. Extend NAS Functionality With The PCIe Slot With a PCIe expansion Gen 2.0 x 4 slot, the TS-251D provides flexibility in extending NAS functionality & potential applications. To optimize system performance, install a QNAP QM2 card for M.2 SSD caching/10 Gb E connectivity & use with Qtier tiered storage for optimal system performance. You can also use the TS-251D as a wireless access point by installing a compatible QNAP QWA-AC2600 wireless network card to create a wireless media streaming environment. Moreover, by configuring the QXG-10 Gb E/5 Gb E network expansion cards, you can upgrade your network to high-speed connectivity with an existing CAT 5e cable. Alternatively, you can add an affordable QNAP QNA-UC5G1T USB (Universal Serial Bus) 3.2 Gen 1 to 5 Gb E adapter to your TS-251D & laptop to enjoy higher network speeds, or boost the USB (Universal Serial Bus) connectivity of the TS-251D by installing a USB (Universal Serial Bus) 3.2 Gen 2 (10 Gbps) card. QVR Pro Safeguards Your Environment QNAP&153;s QVR Pro surveillance solution means that you can arrange dedicated, independent storage space for surveillance data on the TS-251D & leverages scalable storage advantages. With QVR Pro, camera management, storage space allocation, camera live view, & playback is greatly simplified. You can also use USB (Universal Serial Bus) webcams as network cameras with the QUSBCam 2 app, & remotely monitor surveillance feeds anytime with QVR Pro Client mobile app. Multiply Your Productivity The app-driven QTS operating system provides solutions for simplifying file backup, management, search, & more. Qmail Agent Centrally manage & switch between different email accounts, back up emails to the NAS, & safeguard email security & personal privacy. Notes Station 3 Notes Station 3 can bring the advantages of collaborative note-taking with enhanced productivity to provide higher efficiency for your workgroup. Smart Filing Qfiling automates file organization. Files are automatically archived into folders based on your settings. Full-Text Search Qsirch quickly finds images, music, videos, documents, emails, & other files. Flexible & Economical Storage Expansion QNAP provides an easy & flexible solution for increasing storage capacity before you run out of storage space. Here are the following ways you can expand NAS storage for accommodating data & business growth: Upgrade RAID Capacity Hot-swap lower-capacity drives with larger-capacity drives for your QNAP NAS to grow with your business. VJBOD Use Virtual JBOD (VJBOD) to expand storage capacity by using unused storage in other QNAP NAS. Up to 8 QNAP NAS can be mounted as local disks on the TS-251D. Attach Expansion Enclosures Easily expand NAS capacity by connecting two TR-002, TR-004 USB (Universal Serial Bus) hardware RAID external enclosures with QNAP&153;s Storage & Snapshots Manager application.\n\n\n\n Storage Total installed storage capacity 6 TBOnline RAID migration Yes Online RAID expansion Yes Disk roaming Yes Bad block scan Yes Storage drives installed Yes Installed storage drive type HDDNumber of storage drives installed 2 Supported storage drive types HDD & SSDNumber of storage drives supported 2 Storage drive interface Serial ATA IIIStorage drive capacity 3000 GBStorage drive size 3.5" Hot-swap drive bays Yes RAID support Yes Supported file systems FAT32, HFS+, NTFS, ext 3, ext 4RAID levels 0, 1, JBODSupported storage drive interfaces Serial ATA IIIStorage drive sizes supported 2.5, 3.5"RAID rebuild Yes Processor Processor manufacturer Intel Tjunction 105 &176;CThermal Design Power (TDP)10 WProcessor threads 2 Processor socket BGA 1090 Processor package size 25 x 24 mm Processor operating modes 64-bit Processor lithography 14 nm Processor codename Gemini Lake Processor cache 4 MBProcessor boost frequency 2.7 GHz PCI Express slots version 2.0PCI Express configurations 1x 2, 1x 2+2x 1, 1x 4, 2x 1, 4x 1 On-board graphics adapter model Intel&174; UHD Graphics 600CPU configuration (max)1 Maximum internal memory supported by processor 8 GBConflict-Free processor Yes Processor ARK ID128992 Processor frequency 2 GHz Processor family Intel&174; Celeron&174; Processor model J4005 Processor cores 2 Memory Internal memory type DDR4 Internal memory 2 GBMemory clock speed 2400 MHz Maximum RAM supported 8 GBMemory slots 2 Flash memory 4096 MBMemory form factor SO-DIMMNetwork Load balancing system Yes Link aggregation Yes Dynamic DNS (DDNS) Yes Ethernet LANYes Ethernet LAN data rates 10, 100, 1000 Mbit/s Wake-on-LAN ready Yes Jumbo frames support Yesi SCSI support Yes DHCP server Yes DHCP client Yes WLAN adapter supported Yes Ports & interfaces USB port Yes USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity 2HDMI version 2.0USB 2.0 ports quantity 3HDMI ports quantity 1 Ethernet LAN (RJ-45) ports 1 Hard drive RAID support Yes Supported file systems FAT32, HFS+, NTFS, ext 3, ext 4RAID levels 0, 1, JBODGraphics On-board graphics adapter model Intel&174; UHD Graphics 600 On-board graphics adapter ID0x 3185 On-board graphics adapter dynamic frequency (max)700 MHz On-board graphics adapter Direct X version 12.0 On-board graphics adapter burst frequency 700 MHz On-board graphics adapter base frequency 250 MHz Maximum on-board graphics adapter memory 8 GBNumber of displays supported (on-board graphics)3 Design Cooling type Active Fan diameter 7 cm Cable lock slot type Kensington Product colour Blue, White Number of fans 1 fan (s)LED indicators HDD, LAN, Power, Status, USBChassis type Tower Cable lock slot Yes Technical details Type NASDevice class Home & Home Office Backup function Yes Backup features Cloud, i SCSI LUNProduct colour Blue, White Number of users 4096 user (s) Noise level 16.7 d BLED indicators HDD, LAN, Power, Status, USBChassis type Tower Buzzer Yes Number of fans 1 fan (s) Performance Built-in FTP server Yes System log Yes Share folder access right management Yes Share folder 512S.M.A.R.T. support Yes Hot spare Yes Browser supported Apple Safari 7+, Google Chrome, Microsoft Internet Explorer 10+, Mozilla Firefox Remotely operated Yes Backup button Yes Universal Plug & Play (UPn P) Yes Built-in Bit Torrent client Yes Type NASDevice class Home & Home Office Backup function Yes Backup features Cloud, i SCSI LUNOn/off switch Yes Windows operating systems supported Windows 10, Windows 10 Education, Windows 10 Education x 64, Windows 10 Enterprise, Windows 10 Enterprise x 64, Windows 10 Home, Windows 10 Home x 64, Windows 10 Pro, Windows 10 Pro x 64, Windows 10 x 64, Windows 7, Windows 7 Enterprise, Windows 7 Enterprise x 64, Windows 7 Home Basic, Windows 7 Home Basic x 64, Windows 7 Home Premium, Windows 7 Home Premium x 64, Windows 7 Professional, Windows 7 Professional x 64, Windows 7 Starter, Windows 7 Starter x 64, Windows 7 Ultimate, Windows 7 Ultimate x 64, Windows 7 x 64, Windows 8, Windows 8 Enterprise, Windows 8 Enterprise x 64, Windows 8 Pro, Windows 8 Pro x 64, Windows 8 x 64 Server operating systems supported Windows Server 2003, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016, Windows Server 2019 Mac operating systems supported Mac OS X 10.7 Lion, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks Linux operating systems supported Yes Web-based management Yes Security algorithms 256-bit AES, FIPS 140-2, HTTPS, SSHReset button Yes Operating system version 4.4.1 Operating system installed QNAP Turbo System Number of users 4096 user (s) Noise level 16.7 d B Management protocols SNMPBuzzer Yes Access Control List (ACL) Yes Third-party support Yes Snapshot Yes USB copy function Yes Cooling Cooling type Active Fan diameter 7 cm Number of fans 1 fan (s) Security Cable lock slot type Kensington Security algorithms 256-bit AES, FIPS 140-2, HTTPS, SSHCable lock slot Yes Access Control List (ACL) Yes Software Windows operating systems supported Windows 10, Windows 10 Education, Windows 10 Education x 64, Windows 10 Enterprise, Windows 10 Enterprise x 64, Windows 10 Home, Windows 10 Home x 64, Windows 10 Pro, Windows 10 Pro x 64, Windows 10 x 64, Windows 7, Windows 7 Enterprise, Windows 7 Enterprise x 64, Windows 7 Home Basic, Windows 7 Home Basic x 64, Windows 7 Home Premium, Windows 7 Home Premium x 64, Windows 7 Professional, Windows 7 Professional x 64, Windows 7 Starter, Windows 7 Starter x 64, Windows 7 Ultimate, Windows 7 Ultimate x 64, Windows 7 x 64, Windows 8, Windows 8 Enterprise, Windows 8 Enterprise x 64, Windows 8 Pro, Windows 8 Pro x 64, Windows 8 x 64 Server operating systems supported Windows Server 2003, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016, Windows Server 2019 Mac operating systems supported Mac OS X 10.7 Lion, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks Linux operating systems supported Yes Operating system version 4.4.1 Operating system installed QNAP Turbo System Management features On/off switch Yes Web-based management Yes Reset button Yes Management protocols SNMPPower Power supply location External Power supply unit (PSU) capacity 65 WAC input voltage 100
- 240 VPower consumption (typical)15.25 WPower consumption (sleep)8.08 WExternal power adapter Yes Weight & dimensions Width 105 mm Depth 226 mm Height 168 mm Weight 1.48kg Package weight 2.58kg Packaging content Number of screws 14 External power adapter Yes Cables included AC, LAN (RJ-45) Processor special features UARTYes Thermal Monitoring Technologies Yes Number of execution units 12 Maximum number of PCI Express lanes 6 Intel&174; Turbo Boost Technology No Intel&174; Smart Response Technology No Intel&174; Secure Key Yes Intel&174; Quick Sync Video Technology Yes Intel&174; OS Guard Yes Intel&174; Identity Protection Technology (Intel&174; IPT) Yes Intel&174; Hyper Threading Technology (Intel&174; HT Technology) No Intel&174; Anti-Theft Technology (Intel&174; AT) No Intel&174; AES New Instructions (Intel&174; AES-NI) Yes Intel VT-x with Extended Page Tables (EPT) Yes Intel Virtualization Technology for Directed I/O (VT-d) Yes Intel Virtualization Technology (VT-x) Yes Intel Smart Response Technology version 0.00 Intel Secure Key Technology version 1.00 Intel Identity Protection Technology version 1.00 Intel Enhanced Halt State Yes Intel 64 Yes Idle States Yes Execute Disable Bit Yes Enhanced Intel Speed Step Technology Yes Embedded options available No Memory types supported by processor DDR4-SDRAM, LPDDR4-SDRAMSystem requirements Windows operating systems supported Windows 10, Windows 10 Education, Windows 10 Education x 64, Windows 10 Enterprise, Windows 10 Enterprise x 64, Windows 10 Home, Windows 10 Home x 64, Windows 10 Pro, Windows 10 Pro x 64, Windows 10 x 64, Windows 7, Windows 7 Enterprise, Windows 7 Enterprise x 64, Windows 7 Home Basic, Windows 7 Home Basic x 64, Windows 7 Home Premium, Windows 7 Home Premium x 64, Windows 7 Professional, Windows 7 Professional x 64, Windows 7 Starter, Windows 7 Starter x 64, Windows 7 Ultimate, Windows 7 Ultimate x 64, Windows 7 x 64, Windows 8, Windows 8 Enterprise, Windows 8 Enterprise x 64, Windows 8 Pro, Windows 8 Pro x 64, Windows 8 x 64 Server operating systems supported Windows Server 2003, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016, Windows Server 2019 Mac operating systems supported Mac OS X 10.7 Lion, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks Linux operating systems supported Yes Operational conditions Operating temperature (T-T)0
- 40 &176;COperating relative humidity (H-H)5
- 95% Packaging data Package weight 2.58kg Cables included AC, LAN (RJ-45) Other features Processor ARK ID128992\n\n\n\n Datasheet: https://d 5bm 31en 4blvo.cloudfront.net/uploads/pdf/mmo_77972091_1583779017_373_17323.pdf


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