NAS Buying guide Home Office

QNAP TS-251D-2G NAS, 2BAY (NO DISK), CEL-J4005, 2GB, USB, GbE(1), PCIe(1), TWR, 2YR



  1. TS-251D-2G

    CPU Intel® Celeron® J4005 dual-core 2.0 GHz processor (burst up to 2.7 GHz)
    CPU Architecture 64-bit x86
    Graphic Processors Intel® HD Graphics 600
    Floating Point Unit  
    Encryption Engine  (AES-NI)
    Hardware-accelerated Transcoding  
    System Memory 2 GB SO-DIMM DDR4 (1 x 2 GB)
    Maximum Memory 8 GB (2 x 4GB)
    Memory Slot 2 x SO-DIMM DDR4
    For dual-DIMM configuration, you must use a pair of identical DDR4 modules.
    Flash Memory 4GB (Dual boot OS protection)
    Drive Bay 2 x 3.5-inch SATA 6Gb/s, 3Gb/s
    The system is shipped without HDD.
    For the HDD compatibility list, please visit
    Drive Compatibility 3.5-inch SATA hard disk drives
    2.5-inch SATA hard disk drives
    2.5-inch SATA solid state drives
    M.2 SSD Slot Optional via a QM2 PCIe adapter
    SSD Cache Acceleration Support  
    Gigabit Ethernet Port (RJ45) 1
    Expandable with an optional PCIe adapter
    5 Gigabit Ethernet Port Expandable with an optional PCIe adapter
    10 Gigabit Ethernet Port Expandable with an optional PCIe adapter
    Jumbo Frame  
    PCIe Slot 1
    Slot 1: PCIe Gen 2 x4
    PCIe bandwidth limitations will restrict the NAS 10GbE performance.
    USB 2.0 port 3
    USB 3.0 port 2
    USB 3.1 Gen 2 (10Gbps) Port Optional via a PCIe expansion card
    IR Sensor  (Optional QNAP RM-IR004 remote control)
    HDMI Output 1, HDMI 2.0
    Form Factor Tower
    LED Indicators Power/Status, LAN, USB, HDD1-2
    Buttons Power, USB copy, Reset
    Dimensions (HxWxD) 168 × 105 × 226 mm
    Weight (Net) 1.48 kg
    Weight (Gross) 2.58 kg
    Operating temperature 0 - 40 °C (32°F - 104°F)
    Relative Humidity 5-95% RH non-condensing, wet bulb: 27˚C (80.6˚F)
    Power Supply Unit External Power Adapter, 65W, 100-240V
    Power Consumption: HDD Sleep Mode 8.08 W
    Power Consumption: Operating Mode, Typical 15.25 W
    Fan 1 x 70mm
    Sound Level 16.7 db(A)
    System Warning Buzzer
    Kensington Security Slot  
    Note: Use only QNAP memory modules to maintain system performance and stability. For NAS devices with more than one memory slot, use QNAP modules with identical specifications. Warning: Using unsupported modules may degrade performance, cause errors, or prevent the operating system from starting.
    * Sound Level Test Environment: Refer to ISO 7779; Maximum HDD loaded; Bystander Position; Average data from 1 meter in front of operating NAS.
    Designs and specifications are subject to change without notice.
SKU TS-251D-2G
Barcode # 885022009008
Brand QNAP
Shipping Weight 1.4800kg

Manufacturer warranty: 2 year

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