WD_BLACK SN850X 4TB PCIe Gen 4.0 NVMe M.2 SSD with Heatsink
The WD_BLACK SN850X 4TB provides high-capacity PCIe Gen4 NVMe storage with an integrated heatsink for improved thermal management during demanding workloads. It is suitable for gaming PCs, workstations, content creation, and applications requiring large amounts of fast storage.
The 4TB model delivers sequential read speeds of up to 7,300MB/s and sequential write speeds of up to 6,600MB/s, with random performance of up to 1.2M IOPS read and 1.1M IOPS write.
Specifications:
| Specification | Details |
|---|---|
| Brand | WD_BLACK |
| Series | SN850X |
| Storage Capacity | 4TB |
| Drive Type | NVMe Solid State Drive (SSD) |
| Form Factor | M.2 2280 |
| Interface | PCIe 4.0 x4 |
| NAND | SanDisk TLC 3D NAND |
| Sequential Read | Up to 7,300MB/s |
| Sequential Write | Up to 6,600MB/s |
| Random Read | Up to 1.2M IOPS |
| Random Write | Up to 1.1M IOPS |
| Endurance | 2,400TBW |
| Heatsink | Integrated |
| Operating Temperature | 0°C to 85°C |
| Model Number | WDS400T2XHE-00BCA0 |
Key Features:
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4TB storage capacity
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PCIe Gen4 x4 NVMe interface
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M.2 2280 form factor
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Integrated heatsink
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Up to 7,300MB/s sequential read
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Up to 6,600MB/s sequential write
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Up to 1.2M random read IOPS
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Up to 1.1M random write IOPS
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TLC 3D NAND
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Designed for gaming, workstations, and demanding workloads




