New
ATTECH AT422 256GB SATA III 2.5"
Capacity 256GB
Form Factor 2.5"
Interface SATA III
Read Speed 550 MB/s
21 Overall Score
No current retailer price
Snapshot
Pros & Cons
Pros
- Strong affordability (94th percentile) 94th
Cons
- Below average social proof (7th percentile)
- Below average feature (15th percentile)
- Below average capacity (18th percentile)
- Below average random (23rd percentile)
The proof
Performance
Specifications
Full Specifications
Drive
| Capacity | 256 |
| Form Factor | 2.5" |
| Interface | SATA III |
| Protocol | SATA |
| External | No |
Performance
| Sequential Read (MB/s) | 550 |
| Sequential Write (MB/s) | 500 |
Reliability
| Warranty (years) | 3 |
Features
| Heatsink | No |
vs Competition
| Spec | ATTECH AT422 | Crucial T500 CT1000T500SSD5 | Corsair MP600 Elite | Team Group MP44L | SanDisk Optimus GX 7100 | KingSpec XG 7000 XG7000-1TB |
|---|---|---|---|---|---|---|
| Capacity | 256GB | 1TB | 1TB | 500GB | 500GB | 1TB |
| Form Factor | 2.5" | M.2 | M.2 2280 | M.2 2280 | M.2 2280 | M.2 2280 |
| Interface | SATA III | PCIe 4.0 | PCIe 4.0 x4 | PCIe 4.0 x4 | PCIe 4.0 x4 | PCIe 4.0 x4 |
| Seq Read | 550 MB/s | 7,300 MB/s | 7,000 MB/s | 5,000 MB/s | 6,800 MB/s | 7,400 MB/s |
| Nand Type | - | TLC | TLC | TLC | TLC | TLC |
| Dram Cache | - | true | false | false | false | false |
| Endurance | - | 600 TBW | 1200 TBW | 160 TBW | 300 TBW | 600 TBW |
| Compare | Compare | Compare | Compare | Compare |
| Product | Speed | Random | Feature | Capacity | Endurance | Social Proof | Affordability |
|---|---|---|---|---|---|---|---|
| ATTECH AT422 | 28.2 | 22.8 | 14.7 | 17.8 | 42.3 | 7.4 | 94 |
| Crucial T500 CT1000T500SSD5 Compare | 91.3 | 96.7 | 98.9 | 55.4 | 82.9 | 95.3 | 52.8 |
| Corsair MP600 Elite Compare | 84.1 | 61.8 | 53.5 | 55.4 | 93.8 | 95.3 | 58.2 |
| Team Group MP44L Compare | 71.2 | 86.6 | 78.5 | 26.9 | 69 | 87.1 | 74.1 |
| SanDisk Optimus GX 7100 Compare | 80.5 | 93.8 | 53.5 | 26.9 | 88.1 | 50.3 | 72 |
| KingSpec XG 7000 XG7000-1TB Compare | 90.9 | 61.8 | 53.5 | 55.4 | 79.9 | 68.3 | 60 |
Price
Value & Pricing
We started tracking prices for this product on Nov 8, 2026. The chart appears once we have more data.
Usage Scores
- Overall21.4
- Budget62.4
- Gaming12.4
- Laptop17.7
- Console5.4
- Portable4.3
- Workstation21.3
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
