Description

Price: £559.98 - £493.99
(as of Jul 10, 2025 03:21:55 UTC – Details)

From the manufacturer

Get the Ultimate Gaming Edge

Insane speeds up to 7,200 MB/s(1), (8TB) deliver top-tier performance with ridiculously short load times for the elite gaming experience you’ve been waiting for.

More Room for More Games

Capacities up to 8TB(2) 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 – WD_BLACK Dashboard

The downloadable WD_BLACK Dashboard (Windows only) monitors your drive’s health, and lets you customize your RGB lighting.

Future-forward Features

The WD_BLACK SN850X SSD boasts a powerful suite of features, including Predictive Loading, Overhead Balancing, and Adaptive Thermal Management(4).

DirectStorage Supported

Improve load times and get precious time back with Microsoft * DirectStorage technology

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Customer Reviews

4.3 out of 5 stars 224

4.7 out of 5 stars 23,098

4.6 out of 5 stars 926

4.6 out of 5 stars 571

Price

£493.99£493.99

£104.97£104.97

£112.13£112.13

£188.99£188.99

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)

7,200 MB/s (8TB model)

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, the WD_BLACK logo, and 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.

2024 Western Digital * Corporation or its affiliates. All rights reserved.

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.
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).