QNAP TS-X51+ Series TS-451+-2G (2GB RAM)

Part No: TS-451+-2G (2GB RAM)

4-Bay NAS, Intel Celeron Quad-Core 2.0GHz (up to 2.42GHz), 2GB DDR3L RAM (max 8GB), SATA 6Gb/s, 2 x GbE, hardware transcoding, HDMI out with kodi, remote control included, Virtualization Station, Surveillance Station (max 40 Ch), max 1 UX-800P/500P expansion unit

    The TS-451S provides a high performance & high capacity storage solution for SOHO & home, workgroup, and SMB users. Powered by the advanced QTS operating system, the TS-451S performs as an easy-to-use yet powerful NAS for data backup, file synchronization, remote access, home entertainment, and is ideal for users to build a personal cloud to access their data easily.

    • Transcode Full HD videos on-the-fly or offline*
    • Play 1080p videos with 7.1 channel surround sound pass-through via HDMI output
    • Create a personal cloud and stream your multimedia library via DLNA, AirPlay, and Plex
    • Centralize your file storage, sharing and backup
    • Run a virtual machine and extend the functionality of the NAS with an integrated virtualization solution
    • Expand the total raw storage capacity up to 52TB (with maximum 12 hard drives) with the economical QNAP expansion enclosure UX-800P

    Hardware Specifications

    Processor: Intel® Celeron® 2.41GHz dual-core processor (burst up to 2.58GHz)


    1GB DDR3L RAM (expandable up to 8GB)


    For the information of RAM module installation and compatible NAS models.

    Flash Memory: 512MB

    Hard Disk Drive: 
    4 x 2.5” SATA 6Gb/s, SATA 3Gb/s hard drive or SSD
    1. The system is shipped without HDD.
    2. For the HDD compatibility list

    Hard Disk Tray: 4 x Hot-swappable tray

    LAN Port: 2 x Gigabit RJ-45 Ethernet port

    LED Indicators: Status, LAN, USB, HDD 1, HDD 2, HDD3, HDD4


    3 x USB 3.0 port (Front: 1, Rear: 2)
    Support USB printer, pen drive, and USB UPS etc.

    HDMI: 1 (v1.4a)

    IR Receiver: MCE-compatible

    Buttons: Power, reset

    Alarm buzzer: System warning

    Form factor: 2U, rack mountable


    150 (H)x 102(W) x 216(D) mm
    5.91(H) x 4.02(W) x 8.5(D) inch


    Net: 1.74 kg (4.34lbs)
    Gross: 2.29 kg (6.94lbs)

    Power Consumption (W): 

    HDD standby: 13.48W
    S3 sleep: 0.75W
    In operation: 20.83W
    (with 4 x 1TB HDD installed)

    Temperature: 0-40˚C

    Humidity: 5~95% RH non-condensing, wet bulb: 27˚C

    Power Supply: External Power Adapter, 90W, 100-240V

    Secure Design: Kensington security slot for theft prevention

    Fan: 1 x quiet cooling fan (7 cm, 12V DC)