Western Digital WDS400T2X0E internal solid state drive 4 TB M.2 PCI Express 4.0 NVMe 3D TLC NAND
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Overview
Built for elite gaming.
Crush load times and slash throttling, lagging, and texture pop-ins with the WD_BLACK SN850X NVMe™ SSD. Available in capacities of 1TB up to 8TB2, this gaming drive is built for top-tier performance. With 7,300MB/s1 speeds (1TB - 4TB models) and a heatsink option to maintain performance, you can enjoy your favorite games without worrying about lag. Plus, the downloadable WD_BLACK Dashboard (Windows® only) can automatically turn on Game Mode 2.0 features. The WD_BLACK SN850X NVMe™ SSD delivers a smooth, fast experience —and the innovations that let you compete at your absolute peak.
Gain the Ultimate Gaming Edge
Insane speeds up to 7,300 MB/s1 (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 8TB2 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 Management5.
DirectStorage Supported
Improve load times and get precious time back with Microsoft® DirectStorage technology.
Specifications
Hard drive
| SSD capacity | 4 TB |
|---|---|
| Memory type | 3D TLC NAND |
Data transmission
| Read speed | 7300 MB/s |
|---|---|
| Write speed | 6600 MB/s |
| Random write (4KB) | 1100000 IOPS |
| Random read (4KB) | 1200000 IOPS |
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Features
| M.2 SSD size | 2280 (22 x 80 mm) |
|---|
Certificates
| Certification | BSMI, CAN ICES-3(B)/NMB-3(B), CE, FCC, KCC, Morocco, RCM, TUV, UL, VCCI |
|---|
Performance
| Interface | PCI Express 4.0 |
|---|---|
| NVMe | Yes |
| TBW rating | 2400 |
Design
| SSD form factor | M.2 |
|---|
Weight & dimensions
| Width | 22.1 mm |
|---|---|
| Weight | 7.5 g |
| Height | 2.3 mm |
| Depth | 80 mm |
Operational conditions
| Operating temperature (T-T) | 0 - 85 °C |
|---|---|
| Storage temperature (T-T) | -40 - 85 °C |
| Minimum operating temperature | 0 °C |
| Maximum operating temperature | 85 °C |
Technical details
| Warranty period | 5 year(s) |
|---|
Customer reviews
Delivery & returns
Delivery
- FREE standard delivery on orders over £50, otherwise £4.95 (3–5 working days).
- Express delivery £9.99 (1–3 working days) on selected products, UK mainland.
- PlayStation and Arozzi products use a 5–7 working-day service.
- Orders are processed within 24 hours, Monday to Friday excluding bank holidays. All deliveries must be signed for.
Returns
- Changed your mind? Tell us within 14 days of receiving your item, then return it within a further 14 days, unused and in its original packaging. A minimum £9.99 collection fee applies.
- Faulty or damaged on arrival? Contact us within 48 hours of delivery.
- Custom-built PCs can only be returned if faulty. Opened headphones, earphones and AirPods can't be returned for hygiene reasons.
