Novexa SN-8558 Ultra 4TB PCIe 5.0 NVMe M.2 2280 SSD
SSDs · Novexa · SKU SN8558-ULTRA · Released 2025 · Updated 2026-10-22
Key facts
| Benchmark index | 12,547 (SSDs scale) |
|---|---|
| Category rank | #10,573 |
| Street price | $389 |
| Power | 11 W (active) |
| Performance per dollar | 32.25 |
| Released | 2025 |
Specifications
| Brand | Novexa |
|---|---|
| Model | Novexa SN-8558 Ultra |
| Capacity | 4 TB |
| Form factor | M.2 2280 |
| Interface | PCIe 5.0 x4, NVMe 2.0 |
| Sequential read | 14,300 MB/s |
| Sequential write | 13,200 MB/s |
| Random 4K read | 1,950K IOPS |
| NAND | 3D TLC, 232-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
Similar SSDs
| Model | Benchmark | Price | Compare |
|---|---|---|---|
| Mirenta SN-2527 Edge 4TB PCIe 4.0 NVMe M.2 2280 SSD | 14,440 | $579 | Compare |
| Caldera SN-6937 Ti 2TB PCIe 4.0 NVMe M.2 2280 SSD | 11,255 | $309 | Compare |
| Caldera SN-7554 Max 2TB PCIe 4.0 NVMe M.2 2280 SSD | 8,790 | $199 | Compare |
| Novexa SN-2612 Plus 2TB PCIe 4.0 NVMe M.2 2280 SSD | 10,040 | $249 | Compare |
| Mirenta SN-9386 Plus 8TB PCIe 4.0 NVMe M.2 2280 SSD | 13,609 | $449 | Compare |
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Cite this page: Hardware Spec Index, “Novexa SN-8558 Ultra 4TB PCIe 5.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/8715922 (accessed 2026-10-22).