Altrix SN-7557 Ultra 1TB PCIe 4.0 NVMe M.2 2280 SSD
SSDs · Altrix · SKU SN7557-ULTRA · Released 2020 · Updated 2026-10-24
Key facts
| Benchmark index | 8,457 (SSDs scale) |
|---|---|
| Category rank | #23,423 |
| Street price | $149 |
| Power | 8 W (active) |
| Performance per dollar | 56.76 |
| Released | 2020 |
Specifications
| Brand | Altrix |
|---|---|
| Model | Altrix SN-7557 Ultra |
| Capacity | 1 TB |
| Form factor | M.2 2280 |
| Interface | PCIe 4.0 x4, NVMe 2.0 |
| Sequential read | 7,000 MB/s |
| Sequential write | 6,600 MB/s |
| Random 4K read | 860K IOPS |
| NAND | 3D TLC, 238-layer |
| Cache | DRAM-less (HMB) |
| Endurance | 600 TBW (0.33 DWPD) |
| Warranty | 5 years |
| Heatsink | None |
Related guides
NVMe SSDs ExplainedM.2 SSD Sizes and KeysSSD Endurance ExplainedDRAM vs DRAM-less SSDsPCIe 4.0 vs PCIe 5.0
Similar SSDs
| Model | Benchmark | Price | Compare |
|---|---|---|---|
| Altrix SN-2900 XT 1TB SATA 2.5-inch SSD | 3,187 | $29 | Compare |
| Caldera SN-5858 SE 4TB PCIe 4.0 NVMe M.2 2280 SSD | 13,375 | $479 | Compare |
| Novexa SN-8003 Ultra 8TB PCIe 5.0 NVMe M.2 2280 SSD | 13,464 | $499 | Compare |
| Mirenta SN-4636 Edge 2TB PCIe 4.0 NVMe M.2 2280 SSD | 9,876 | $269 | Compare |
| Caldera SN-1933 Pro 1TB SATA 2.5-inch SSD | 4,314 | $49 | Compare |
| Novexa SN-5196 Prime 4TB PCIe 5.0 NVMe M.2 2280 SSD | 13,372 | $509 | Compare |
Cite this page: Hardware Spec Index, “Altrix SN-7557 Ultra 1TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/95030777 (accessed 2026-10-24).