Mirenta SN-8638 Ultra 4TB PCIe 4.0 NVMe M.2 2280 SSD
SSDs · Mirenta · SKU SN8638-ULTRA · Released 2020 · Updated 2026-10-21
Key facts
| Benchmark index | 14,122 (SSDs scale) |
|---|---|
| Category rank | #29,268 |
| Street price | $469 |
| Power | 6 W (active) |
| Performance per dollar | 30.11 |
| Released | 2020 |
Specifications
| Brand | Mirenta |
|---|---|
| Model | Mirenta SN-8638 Ultra |
| Capacity | 4 TB |
| Form factor | M.2 2280 |
| Interface | PCIe 4.0 x4, NVMe 2.0 |
| Sequential read | 6,900 MB/s |
| Sequential write | 5,900 MB/s |
| Random 4K read | 700K IOPS |
| NAND | 3D TLC, 176-layer |
| Cache | DDR4 DRAM, 4 GB |
| Endurance | 2,400 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
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| Model | Benchmark | Price | Compare |
|---|---|---|---|
| Altrix SN-9792 Max 4TB PCIe 4.0 NVMe M.2 2280 SSD | 10,126 | $269 | Compare |
| Mirenta SN-1611 Plus 8TB PCIe 4.0 NVMe M.2 2280 SSD | 12,156 | $439 | Compare |
| Novexa SN-7231 Ultra 1TB PCIe 4.0 NVMe M.2 2280 SSD | 7,939 | $139 | Compare |
| Novexa SN-9043 SE 2TB PCIe 4.0 NVMe M.2 2280 SSD | 10,829 | $379 | Compare |
| Novexa SN-1197 Ultra 4TB PCIe 4.0 NVMe M.2 2280 SSD | 13,923 | $549 | Compare |
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Cite this page: Hardware Spec Index, “Mirenta SN-8638 Ultra 4TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/72942777 (accessed 2026-10-21).