WD_Black SN850X 4TB SSD, M.2 2280 NVMe SSD with Heatsink, Gaming Expansion SSD
WD_Black SN850X 4TB SSD, M.2 2280 NVMe SSD with Heatsink, Gaming Expansion SSD, PCIe Gen4 NVMe, High Performance Internal SSD, Read speeds up to 7300 MB/s, Write speeds up to 6,600 MB/s
- Gain the ultimate gaming edge. Insane speeds up to 7,300MB/s (1TB – 4TB models) deliver top-tier performance with ridiculously short load times — for the elite gaming experience you’ve been waiting for.
- Heatsink for the win. All capacities have an optional heatsink version that's not only eye-catching, but also helps your rig maintain peak performance through your most intense gaming sessions.
- More room for more games. Capacities up to 8TB built with Western Digital TLC 3D NAND, means you get to keep more games at the ready — and get into the action even faster.
- Do more with WD_BLACK Dashboard. The downloadable WD_BLACK Dashboard (Windows only) monitors your drive’s health, lets you customize your RGB lighting, and, exclusively on the SN850X SSD, enables Game Mode 2.0 to transform your gaming experience.
- Future-forward features. The WD_BLACK SN850X SSD boasts a powerful suite of features, including Predictive Loading, Overhead Balancing, and Adaptive Thermal Management (ATM).
| SKU: | B0D9WTKV1B |
| Weight: | 8.6 g |
| Dimensions: | 12.6 x 10.2 x 2.1 cm; 8.6 g |
| Brand: | WD_Black |
| Model: | WDS400T2XHE |
| Colour: | Black |
| Manufacture: | Western Digital Technologies, Inc. |
From the manufacturer
Future-forward Features
The WD_BLACK SN850X SSD boasts a powerful suite of features, including Predictive Loading, Overhead Balancing, and Adaptive Thermal Management(4).
Compare SSDs
 WD_BLACK SN850X NVMe SSD |  WD_BLACK SN770 NVMe SSD |  WD Blue SN580 NVMe SSD |  WD Blue SN5000 NVMe SSD | |
| Customer Reviews | 4.8 out of 5 stars 21,783 | 4.7 out of 5 stars 18,169 | 4.5 out of 5 stars 423 | 4.7 out of 5 stars 1,977 |
| Price | £299.59 | £57.59 | £98.17 | £239.99 |
| Capacities(3) | 1TB – 8TB | 250GB – 2TB | 250GB – 2TB | 500GB – 2TB |
| Interface(2) | PCIe Gen4x4 | PCIe Gen4x4 | PCIe Gen4x4 | PCIe Gen 4 |
| Sequential Read (MB/s)(1) | Up to 7,300 (1TB – 4TB models) | Up to 5,150 | Up to 4,150 | Up to 5,500 |
| Sequential Write (MB/s)(1) | Up to 6,600 | Up to 4,850 | Up to 4,150 | Up to 5,000 |
| Great for | Gaming | Gaming | Content Creation | Content Creation |
(1) Based on read speed. 1 MB/s = 1 million bytes per second. Based on internal testing; performance may vary depending upon host device, usage conditions, drive capacity, and other factors.
(2) 1GB = 1 billion bytes and 1TB = 1 trillion bytes. Actual user capacity may be less depending on operating environment.
(3) PCIe Gen4 storage technology requires a compatible motherboard. WD_BLACK SN850X is backwards-compatible with PCIe Gen3.
(4) Requires the downloadable WD_BLACK Dashboard (Windows only)
Western Digital, the Western Digital design, the Western Digital logo, WD_BLACK, and the WD_BLACK logo, WD Blue are registered marks or marks of Western Digital Corporation or its affiliates in the US and/or other countries. NVMe is a mark of NVM Express, Inc. PCIe is a mark of PCI-SIG in the United States and/or other countries. Windows is a mark of Microsoft Corporation. All other marks are the property of their respective owners. Product specifications subject to change without notice. Pictures shown may vary from actual products.
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