New On sale 6%
KingSpec X400 1TB PCIe 4.0 x4 NVMe M.2 2280
Capacity 1TB
Form Factor M.2 2280
Interface PCIe 4.0 x4
Read Speed 7,400 MB/s
NAND TLC
DRAM Cache Yes
Endurance 600 TBW
77 Overall Score
Price $177
Snapshot
Pros & Cons
Pros
- Strong speed (91st percentile) 91st
- Strong feature (90th percentile) 90th
- Strong random (89th percentile) 89th
- Strong endurance (80th percentile) 80th
Cons
The proof
Performance
Specifications
Full Specifications
Drive
| Capacity | 1000 |
| Form Factor | M.2 2280 |
| Interface | PCIe 4.0 x4 |
| Protocol | NVMe |
| PCIe Generation | 4 |
| External | No |
Performance
| Sequential Read (MB/s) | 7400 |
| Sequential Write (MB/s) | 6600 |
| Random Read (IOPS) | 710000 |
| Random Write (IOPS) | 610000 |
Hardware
| NAND | TLC |
| DRAM Cache | Yes |
Reliability
| Endurance (TBW) | 600 |
| MTBF (hours) | 1000000 |
| Warranty (years) | 3 |
Features
| Heatsink | No |
vs Competition
| Spec | KingSpec X400 | Samsung 990 PRO | Crucial T500 | Western Digital WD_BLACK SN8100 | Lexar Professional NM1090 PRO | XPG GAMMIX S70 Blade AGAMMIXS70B-2T-CS |
|---|---|---|---|---|---|---|
| Capacity | 1TB | 2TB | 2TB | 2TB | 2TB | 2TB |
| 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 4.0 x4 |
| Seq Read | 7,400 MB/s | 7,450 MB/s | 7,400 MB/s | 14,900 MB/s | 14,000 MB/s | 7,400 MB/s |
| Nand Type | TLC | TLC | TLC | TLC | TLC | TLC |
| Dram Cache | true | true | true | true | true | true |
| Endurance | 600 TBW | 1200 TBW | 1200 TBW | 1200 TBW | 1400 TBW | 1480 TBW |
| Compare | Compare | Compare | Compare | Compare |
| Product | Speed | Random | Feature | Capacity | Endurance | Social Proof | Affordability |
|---|---|---|---|---|---|---|---|
| KingSpec X400 | 90.9 | 88.8 | 89.5 | 55.3 | 79.9 | 57.9 | 48.1 |
| Samsung 990 PRO Compare | 93.7 | 97.4 | 99 | 78.5 | 86.1 | 95.4 | 20.7 |
| Crucial T500 Compare | 93.9 | 96.9 | 99 | 78.5 | 83 | 95.4 | 19.7 |
| Western Digital WD_BLACK SN8100 Compare | 99.6 | 99.6 | 97.6 | 78.5 | 80.9 | 49.6 | 21.2 |
| Lexar Professional NM1090 PRO Compare | 98.1 | 98.5 | 97.6 | 78.5 | 91.1 | 51.9 | 24.1 |
| XPG GAMMIX S70 Blade AGAMMIXS70B-2T-CS Compare | 92.8 | 90.5 | 94 | 78.5 | 77.7 | 77.4 | 29.6 |
Price
Value & Pricing
From $177
Amazon 1 offer From $177
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.
