Western Digital WD Black SSD SN850X 4 TB M.2 PCI Express 4.0 NVMe

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  • WD_BLACK SN850X NVMe™ SSD - 4TB
  • With Heatsink
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SKU #: WDS400T2XHE-00BCA0
UNSPSC #: 43201830
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 8TB, 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/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.

DirectStorage Supported
Improve load times and get precious time back with Microsoft® DirectStorage technology.
SKU WDS400T2XHE-00BCA0
Specification
Hard drive
PCI Express interface data lanesx4
SSD capacity4 TB
Performance
Windows operating systems supportedWindows 10, Windows 11
InterfacePCI Express 4.0
Component forPC
NVMeYes
TBW rating2400
PCI Express interface data lanesx4
SSD capacity4 TB
Read speed7300 MB/s
Write speed6600 MB/s
Random write (4KB)1100000 IOPS
Random read (4KB)1200000 IOPS
Hardware encryptionNo
Data transmission
Read speed7300 MB/s
Write speed6600 MB/s
Random write (4KB)1100000 IOPS
Random read (4KB)1200000 IOPS
Features
InterfacePCI Express 4.0
Component forPC
NVMeYes
TBW rating2400
PCI Express interface data lanesx4
SSD capacity4 TB
Windows operating systems supportedWindows 10, Windows 11
Read speed7300 MB/s
Write speed6600 MB/s
Random write (4KB)1100000 IOPS
Random read (4KB)1200000 IOPS
Hardware encryptionNo
SSD form factorM.2
Design
Component forPC
SSD form factorM.2
Weight & dimensions
Width24.3 mm
Weight30.4 g
Height10.4 mm
Depth80 mm
System requirements
Windows operating systems supportedWindows 10, Windows 11
Operational conditions
Operating temperature (T-T)0 - 85 °C
Storage temperature (T-T)-40 - 85 °C
Minimum operating temperature0 °C
Maximum operating temperature85 °C
Technical details
InterfacePCI Express 4.0
Operating temperature (T-T)0 - 85 °C
Storage temperature (T-T)-40 - 85 °C
Hardware encryptionNo
SSD form factorM.2
Warranty period5 year(s)
Software
Windows operating systems supportedWindows 10, Windows 11
Other features
Warranty period5 year(s)
Manufacturer Western Digital
In Stock Y