Western Digital
WD BLACK SN8100 4000GB
- Brand:
- Western Digital
- Capacity:
- 4TB
- Interface:
- PCIe NVMe
- Disk Mark Score:
- 91263
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Manufacturer: Western Digital Last updated: 2026-09-15
WD BLACK SN8100 4000GB Review
WD BLACK SN8100 4000GB PCIe NVMe M.2 SSD (no heatsink variant).
This WD_BLACK SN8100 is the standard (non-heatsink) 4TB variant. Benchmarked via harddrivebenchmark.net with a DiskMark score of 91263, placing it in the 78th performance percentile.
Specifications
Identity
| Brand | Western Digital |
|---|---|
| Model Number | WD BLACK SN8100 4000GB |
| Series | WD_BLACK SN8100 |
Interface and form
| Drive Type | Internal |
|---|---|
| Drive Type | Internal |
| Bus Interface | PCIe NVMe, M.2 |
| Bus Interface | PCIe 5.0 x4 |
| Protocol | NVMe |
| Form Factor | M.2 2280 |
Capacity
| Capacity | 4000 GB |
|---|
Sequential performance
| Sequential Read | 14900 MB/s |
|---|---|
| Sequential Write | 14000 MB/s |
Random performance
| Random Read IOPS | 2300 |
|---|---|
| Random Write IOPS | 2400 |
Controller and cache
| Controller | Silicon Motion SM2508 |
|---|---|
| Controller Vendor | Silicon Motion |
| DRAM Cache | DRAM |
NAND
| NAND Type | TLC |
|---|---|
| NAND Vendor | Western Digital |
| NAND Layers | 218 |
Endurance and reliability
| Endurance TBW | 2400 TBW |
|---|
Physical and commercial
| Warranty | 5 years |
|---|
| Capacity Options | 4TB |
|---|---|
| Disk Mark Score | 91263 |
| Performance Percentile | 78% |
| Data Source | harddrivebenchmark.net |
FAQs
What are the key specifications of the WD BLACK SN8100 4000GB?
The WD BLACK SN8100 4000GB is a component from Western Digital. Key specs: Interface PCIe NVMe, M.2, Capacity Options 4TB, Type Internal, Disk Mark Score 91263, Performance Percentile 78%.