Synology Rack Station RS819 is a compact & scalable 4-bay rackmount NAS in 1U form factor. Powered by Synology Disk Station Manager with snapshot technology support, RS819 brings business workgroups simple yet comprehensive solutions to data management, sharing, synchronization & backup. Synology RS819 is backed by Synologys 3-year limited warranty. Compact 1U Rackmount NAS with Excellent Performance Synology Rack Station RS819 is 1U 4-bay rackmount network-attached storage solution for business workgroups. Its compact 12-inch-depth chassis design supports 2-post racks & brings high flexibility to server deployment. Equipped with a 64-bit quad-core processor, 2 GB DDR4 memory, & two Gigabit LAN ports, RS819 delivers sequential reading & writing throughput at over 225 MB/s & 169 MB/s respectively 1. Excellent encrypted data transmission at over 224 MB/s reading & 152 MB/s writing make RS819 an efficient shared storage for multiple users, while keeping valuable data secure & away from potential threats. RS819 also provides storage scalability up to 8 drives when connected to one Synology expansion unit RX4182. Storage capacity can be expanded with minimal effort. Cross-Platform File Sharing & Data Synchronization Synology RS819 supports comprehensive network protocols, ensuring a seamless file sharing experience across Windows, Mac, & Linux platforms. Windows AD & LDAP integration allows RS819 to fit quickly & effortlessly into any existing network environment, without the need to create identical user accounts. Cloud Sync keeps your Dropbox, Google™ Drive, Microsoft One Drive, Baidu, & Box storage in sync with your Rack Station at the workplace. Synology Drive means that you can sync files across Windows, mac OS, Linux, & mobile devices, effortlessly keeping everything up-to-date. RS819 combines seamless file sharing capability with a high level of security, including HTTPS support, a built-in firewall, & multiple IP & account intrusion auto-blocking mechanisms. Btrfs: Next Generation Storage Efficiency RS819 introduces the Btrfs file system, bringing the most advanced storage technologies to meet the management needs of modern businesses: Advanced snapshot technology with customizable backup schedule allows shared folders to be backed up in a minimum 5-minute interval, without consuming heavy system resources. File & folder level data restoration brings huge conveniences & saves your valuable time for users who wish to restore only a specific file or folder. Flexible Shared Folder & User"a System provide comprehensive"a control on all user accounts & shared folders. Synology Drive supports file versioning, requiring as little as half the storage when compared with ext 4 file systems. Advanced i SCSI LUNs based on a Btrfs volume offer lightning-fast snapshot creation, recovery, & cloning. Easy Backup Solutions Synology Hyper Backup provides multi-version backup with block-level incremental backup & cross-version deduplication. It optimizes storage utilization & allows data to be backed up to multiple destinations such as local shared folders, external hard drives, network shared folders, rsync servers, & public cloud services. Running on Synology Disk Station Manager (DSM) Synology Disk Station Manager (DSM) is a web-based operating system tailor-made for every Synology NAS. Featuring an intuitive multitasking user interface, DSM provides simple desktop-like experience to minimize efforts in exploring & managing your Synology NAS. The built-in Package Center means that you can download & install a variety of packages designed specifically for your unique needs, including file backup, productivity, safeguard security & utilities. With all the built-in & add-on features, DSM provides you with complete & fine-grained control of your RS819, helping you maximize productivity & make the best out of your digital assets. All will happen with just a few clicks. Features Scalable 4-bay 1U rackmount NAS for business workgroups. 64-bit quad-core 1.4 G Hz processor. Compact chassis design, less than 12-inch in depth. Encryption performance at over 224 MB/s reading, 152 MB/s writing. Dual 1 Gb E LAN with fail-over & Link Aggregation support. Advanced Btrfs file system offering 4, 096 system-wide snapshots & 256 snapshots per shared folder. Scale up to 8 drives with Synology RX418.