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Western Digital Black SN850X M.2 4000 GB PCI Express 4.0 NVMe

6 pieces available
Your price £285.72
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4 TB, M.2, PCIe Gen4 x4, NVMe
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The Ultimate X Factor Strap in for breakneck gaming speeds with the WD_BLACK SN850X NVMe™ SSD. Crush load times and slash throttling, lagging, and model pop-ins for a smooth, fast experience that lets you compete at your absolute peak. This purpose-built gaming drive comes in capacities of 1TB to 4TB, with an optional heatsink on the 1TB and 2TB drives to help sustain top-end performance for more consistent gameplay. With the advanced features of Game Mode 2.0 (Windows® only) plus speeds that approach the limits of the PCIe® Gen4 interface, the WD_BLACK SN850X NVMe SSD delivers top-tier performance to keep you playing, streaming, recording, and dominating the game. Get the Ultimate Gaming Edge Insane speeds up to 7,300 MB/s deliver top-tier performance with ridiculously short load times for the elite gaming experience you’ve been waiting for. Soup Up Your Rig Extremely low latency loads graphics fast with minimal stutter and lagging for an incredibly smooth, satisfying gaming experience. More Room for More Games Today’s A-list titles can take up 200GB or more of storage. A range of capacities from 1TB to 4TB means you get to keep more games at the ready and get into the action fast. Heatsink for the Win The WD_BLACK SN850X NVMe™ SSD 1TB and 2TB drives have an optional heatsink version that not only looks awesome but also helps your rig maintain peak performance through the most intense gaming sessions. Game Mode 2.0 The latest version of Game Mode serves up even more PC performance-boosting features like load prediction to ready game assets for fast in-game loading. Near-Max PCIe® Gen4 Speeds The WD_BLACK SN850X NVMe™ SSD delivers output approaching the limits of the PCIe® Gen4 interface to help you get ultra-fast performance out of your storage and system components.


  • SSD form factor
  • SSD capacity
    4000 GB
  • Interface
    PCI Express 4.0
  • NVMe
  • Component for
  • Hardware encryption
  • Read speed
    7300 MB/s
  • Write speed
    6600 MB/s
  • Random read (4KB)
    1200000 IOPS
  • Random write (4KB)
    1100000 IOPS
  • PCI Express interface data lanes
  • Windows operating systems supported
    Windows 10, Windows 11, Windows 8.1
  • TBW rating
  • Operating temperature (T-T)
    0 - 85 °C
  • Storage temperature (T-T)
    -40 - 85 °C
  • Maximum operating temperature
    85 °C
  • Width
    22 mm
  • Depth
    80 mm
  • Height
    2.38 mm
  • Weight
    7.5 g
  • Product family
  • Warranty Info
    5 years limited


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