New
SanDisk WD Blue SN5100
Capacity 4TB
Form Factor M.2 2280
Interface PCIe 4.0 x4
Read Speed 6,900 MB/s
NAND QLC
Endurance 1200 TBW
76 Overall Score
No current retailer price
Snapshot
Pros & Cons
Pros
- Strong random (93rd percentile) 93rd
- Strong capacity (93rd percentile) 93rd
- Strong speed (83rd percentile) 83rd
- Strong endurance (75th percentile) 75th
Cons
- Below average feature (14th percentile)
The proof
Performance
Specifications
Full Specifications
Drive
| Capacity | 4000 |
| Form Factor | M.2 2280 |
| Interface | PCIe 4.0 x4 |
| Protocol | NVMe |
| PCIe Generation | 4 |
| External | No |
Performance
| Sequential Read (MB/s) | 6900 |
| Sequential Write (MB/s) | 6700 |
| Random Read (IOPS) | 900000 |
| Random Write (IOPS) | 1100000 |
Hardware
| NAND | QLC |
Reliability
| Endurance (TBW) | 1200 |
| MTBF (hours) | 1750000 |
| Warranty (years) | 5 |
vs Competition
| Spec | SanDisk WD Blue SN5100 | Samsung 990 PRO | Western Digital WD_BLACK SN850X | Lexar NM1090 PRO | fanxiang S910 Pro-2TB | Crucial T705 CT1000T705SSD5 |
|---|---|---|---|---|---|---|
| Capacity | 4TB | 2TB | 2TB | 4TB | 2TB | 1TB |
| Form Factor | M.2 2280 | M.2 2280 | M.2 2280 | M.2 2280 | M.2 2280 | M.2 2280 |
| Interface | PCIe 4.0 x4 | PCIe 4.0 x4 | PCIe 4.0 x4 | PCIe 5.0 x4 | PCIe 5.0 x4 | PCIe 5.0 |
| Seq Read | 6,900 MB/s | 7,450 MB/s | 7,300 MB/s | 14,000 MB/s | 14,000 MB/s | 13,600 MB/s |
| Nand Type | QLC | TLC | TLC | TLC | TLC | TLC |
| Dram Cache | - | true | true | true | true | false |
| Endurance | 1200 TBW | 1200 TBW | 1200 TBW | 2800 TBW | 1400 TBW | 600 TBW |
| Compare | Compare | Compare | Compare | Compare |
| Product | Speed | Random | Feature | Capacity | Endurance |
|---|---|---|---|---|---|
| SanDisk WD Blue SN5100 | 83.3 | 93.4 | 14.4 | 92.9 | 74.9 |
| Samsung 990 PRO Compare | 93.2 | 96.9 | 99 | 78.6 | 86 |
| Western Digital WD_BLACK SN850X Compare | 87.9 | 94.8 | 99 | 78.6 | 74 |
| Lexar NM1090 PRO Compare | 97.7 | 98.1 | 90.4 | 92.9 | 74.5 |
| fanxiang S910 Pro-2TB Compare | 96.7 | 79.8 | 97.4 | 78.6 | 89.5 |
| Crucial T705 CT1000T705SSD5 Compare | 96.5 | 97.5 | 88.8 | 54.8 | 77.7 |
Price
Value & Pricing
We started tracking prices for this product on Nov 8, 2026. The chart appears once we have more data.
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
