New On sale 6%
KingSpec ONEBOOM 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 (89th percentile) 89th
- 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 ONEBOOM X400 | Samsung 990 PRO | Crucial T500 | Lexar Professional NM1090 PRO | Western Digital BLACK SN850X | MSI SPATIUM M480 PRO |
|---|---|---|---|---|---|---|
| Capacity | 1TB | 2TB | 2TB | 2TB | 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 4.0 x4 | PCIe 4.0 x4 |
| Seq Read | 7,400 MB/s | 7,450 MB/s | 7,400 MB/s | 14,000 MB/s | 7,300 MB/s | 7,400 MB/s |
| Nand Type | TLC | TLC | TLC | TLC | TLC | TLC |
| Dram Cache | true | true | true | true | false | true |
| Endurance | 600 TBW | 1200 TBW | 1200 TBW | 1400 TBW | 1200 TBW | 3000 TBW |
| Compare | Compare | Compare | Compare | Compare |
| Product | Speed | Random | Feature | Capacity | Endurance | Social Proof | Affordability |
|---|---|---|---|---|---|---|---|
| KingSpec ONEBOOM X400 | 90.9 | 88.9 | 89.4 | 55.4 | 80 | 57.8 | 48.8 |
| Samsung 990 PRO Compare | 93.7 | 97.4 | 98.9 | 78.5 | 86 | 95.3 | 20.7 |
| Crucial T500 Compare | 94 | 96.9 | 98.9 | 78.5 | 83 | 95.3 | 19.6 |
| Lexar Professional NM1090 PRO Compare | 98.1 | 98.5 | 97.5 | 78.5 | 91.1 | 51.9 | 24.1 |
| Western Digital BLACK SN850X Compare | 89 | 95.6 | 53.7 | 78.5 | 83 | 99.6 | 22.8 |
| MSI SPATIUM M480 PRO Compare | 94 | 81.1 | 93.9 | 55.4 | 98.7 | 95.3 | 43.5 |
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
- Overall77.3
- Budget82.7
- Gaming75.9
- Laptop79.2
- Console72.2
- Portable18.7
- Workstation77.8
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
