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Western Digital
Western Digital WD Black SSD SN850X 4 TB M.2 PCI Express 4.0 NVMe
    SKU    
WDS400T2XHE-00BCA0
            In Stock
        
    WD_BLACK SN850X NVMe™ SSD - 4TB, With Heatsink
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Next Day (UK) Delivery offered on stock items
- Get top-tier performance and ridiculously short load times for your gaming PC or workstation
 - High capacities built with Western Digital TLC 3D NAND so you get to download more games
 - Optional heatsink version to help maintain peak performance through your most intense gaming sessions
 
| Hard drive | |
|---|---|
| PCI Express interface data lanes | x4 | 
| SSD capacity | 4 TB | 
| Performance | |
| Windows operating systems supported | Windows 10, Windows 11 | 
| Interface | PCI Express 4.0 | 
| Component for | PC | 
| NVMe | Yes | 
| TBW rating | 2400 | 
| PCI Express interface data lanes | x4 | 
| SSD capacity | 4 TB | 
| Read speed | 7300 MB/s | 
| Write speed | 6600 MB/s | 
| Random write (4KB) | 1100000 IOPS | 
| Random read (4KB) | 1200000 IOPS | 
| Hardware encryption | No | 
| Data transmission | |
| Read speed | 7300 MB/s | 
| Write speed | 6600 MB/s | 
| Random write (4KB) | 1100000 IOPS | 
| Random read (4KB) | 1200000 IOPS | 
| Features | |
| Interface | PCI Express 4.0 | 
| Component for | PC | 
| NVMe | Yes | 
| TBW rating | 2400 | 
| PCI Express interface data lanes | x4 | 
| SSD capacity | 4 TB | 
| Windows operating systems supported | Windows 10, Windows 11 | 
| Read speed | 7300 MB/s | 
| Write speed | 6600 MB/s | 
| Random write (4KB) | 1100000 IOPS | 
| Random read (4KB) | 1200000 IOPS | 
| Hardware encryption | No | 
| SSD form factor | M.2 | 
| Design | |
| Component for | PC | 
| SSD form factor | M.2 | 
| Weight & dimensions | |
|---|---|
| Width | 24.3 mm | 
| Weight | 30.4 g | 
| Height | 10.4 mm | 
| Depth | 80 mm | 
| System requirements | |
| Windows operating systems supported | Windows 10, Windows 11 | 
| 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 | |
| Interface | PCI Express 4.0 | 
| Operating temperature (T-T) | 0 - 85 °C | 
| Storage temperature (T-T) | -40 - 85 °C | 
| Hardware encryption | No | 
| SSD form factor | M.2 | 
| Warranty period | 5 year(s) | 
| Software | |
| Windows operating systems supported | Windows 10, Windows 11 | 
| Other features | |
| Warranty period | 5 year(s) |