Altrix SN-5558 Pro 4TB PCIe 5.0 NVMe M.2 2280 SSD
SSDs · Altrix · SKU SN5558-PRO · Released 2025 · Updated 2026-10-22
Key facts
| Benchmark index | 10,630 (SSDs scale) |
|---|---|
| Category rank | #36,722 |
| Street price | $369 |
| Power | 10 W (active) |
| Performance per dollar | 28.81 |
| Released | 2025 |
Specifications
| Brand | Altrix |
|---|---|
| Model | Altrix SN-5558 Pro |
| Capacity | 4 TB |
| Form factor | M.2 2280 |
| Interface | PCIe 5.0 x4, NVMe 2.0 |
| Sequential read | 12,000 MB/s |
| Sequential write | 11,200 MB/s |
| Random 4K read | 2,240K IOPS |
| NAND | 3D TLC, 218-layer |
| Cache | LPDDR4 DRAM, 4 GB |
| Endurance | 2,400 TBW (0.33 DWPD) |
| Warranty | 5 years |
| Heatsink | Included (recommended for sustained loads) |
Related guides
NVMe SSDs ExplainedM.2 SSD Sizes and KeysSSD Endurance ExplainedDRAM vs DRAM-less SSDsPCIe 5.0 ExplainedPCIe 4.0 vs PCIe 5.0
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Cite this page: Hardware Spec Index, “Altrix SN-5558 Pro 4TB PCIe 5.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/62813906 (accessed 2026-10-22).