Altrix SN-8558 Ultra 2TB PCIe 4.0 NVMe M.2 2230 SSD
SSDs · Altrix · SKU SN8558-ULTRA · Released 2022 · Updated 2026-10-24
Key facts
| Benchmark index | 7,863 (SSDs scale) |
|---|---|
| Category rank | #12,966 |
| Street price | $129 |
| Power | 7 W (active) |
| Performance per dollar | 60.95 |
| Released | 2022 |
Specifications
| Brand | Altrix |
|---|---|
| Model | Altrix SN-8558 Ultra |
| Capacity | 2 TB |
| Form factor | M.2 2230 |
| Interface | PCIe 4.0 x4, NVMe 2.0 |
| Sequential read | 6,400 MB/s |
| Sequential write | 6,200 MB/s |
| Random 4K read | 1,340K IOPS |
| NAND | 3D TLC, 232-layer |
| Cache | DRAM-less (HMB) |
| Endurance | 1,200 TBW (0.33 DWPD) |
| Warranty | 5 years |
| Heatsink | Heatsink edition available |
Related guides
NVMe SSDs ExplainedM.2 SSD Sizes and KeysSSD Endurance ExplainedDRAM vs DRAM-less SSDsPCIe 4.0 vs PCIe 5.0
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Cite this page: Hardware Spec Index, “Altrix SN-8558 Ultra 2TB PCIe 4.0 NVMe M.2 2230 SSD”, https://vextor7.com/item/8052309 (accessed 2026-10-24).