The TS-253B comes with a sleek new look,  featuring an OLED panel & two capacitive touch buttons. The TS-253B also features a PCIe port for boosting the potential applications of your NAS: the QNAP QM2 expansion card can be installed for adding an M.2 SSD cache/10 Gb E connectivity,  a compatible wireless card can be installed to use the TS-253B as a wireless access point,  & a USB (Universal Serial Bus) 3.1 10 Gbps card can be added for easier backup to/from multiple external storage devices. With a USB (Universal Serial Bus) Type-C Quick Access port & a SD card slot,  the TS-253B simplifies transferring & sharing files without needing a network connection. The TS-253B also provides feature-rich multimedia functionality,  such as 4K video playback & real-time transcoding. The multi-zone multimedia management app Cinema 28 & popular web automation app IFTTT Agent also enrich your multimedia experience & NAS automation. Features PCIe port supports installing a QNAP QM2 dual-port M.2 SSD/10 Gb E connectivity,  a compatible PCIe wireless adapter,  or a USB (Universal Serial Bus) 3.1 10 Gbps card USB (Universal Serial Bus) Quick Access port for direct access to files on NAS without needing a network connection Supports virtualization,  centralized storage,  backup,  sharing,  & disaster recovery A hybrid approach to virtualization in one NAS: Virtualization Station & Container Station Supports 4K hardware decoding & transcodes 4K H.264 videos on-the-fly or offline Cinema 28 for centralized management of multimedia devices to enrich multimedia experiences IFTTT Agent enables web automation for enhanced working efficiency Processor Intel Celeron J3455 quad-core 1.5 GHz,  up to 2.3 GHz Memory 4GB DDR3L Configuration: (2 x 2GB) 2 x DDR3L SODIMM slots Drive Hot-swappable 2 x 3.5"/2.5" SATA 6 Gb/s HDD/SSD Audio speaker,  3.5mm line out jack 
 Dimensions 168 x 105 x 226 mm Weight 1.66kg Power 65W AC adapter,  100-240V Interfaces 2 x RJ45 Gigabit LAN port 5 x USB (Universal Serial Bus) 3.0 Type-A ports 1 PCIe 2.0 x 2 slot 2 x HDMI v 1.4b,  up to 3840 x 2160,  30 Hz 2 x 3.5mm microphone input jacks