WD_BLACK SN850X 8TB SSD, M.2 2280 NVMe SSD with Heatsink, Gaming Expansion SSD, PCIe Gen4 NVMe, High Performance Internal SSD, Read speeds up to 7200 MB/s, Write speeds up to 6,600 MB/s

From the manufacturer

Get the Ultimate Gaming Edge

Insane speeds up to 7,200MB/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.

DirectStorage Supported

Improve load times and get precious time back with Microsoft DirectStoragetechnology.

Do more w/ 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).

Compare SSDs

Add To Basket

Add To Basket

Add To Basket

Add To Basket

Customer Reviews

4.8 out of 5 stars

22,566

4.7 out of 5 stars

18,882

4.5 out of 5 stars

498

4.7 out of 5 stars

1,814

Price

£94.99£94.99

£62.99£62.99

£99.95£99.95

£208.00£208.00

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 7,200 (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, 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.

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.
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).