Mirenta SN-9979 Ultra 4TB PCIe 4.0 NVMe M.2 2280 SSD
SSDs · Mirenta · SKU SN9979-ULTRA · Released 2021 · Updated 2026-10-19
Key facts
| Benchmark index | 12,104 (SSDs scale) |
|---|---|
| Category rank | #26,372 |
| Street price | $339 |
| Power | 7 W (active) |
| Performance per dollar | 35.71 |
| Released | 2021 |
Specifications
| Brand | Mirenta |
|---|---|
| Model | Mirenta SN-9979 Ultra |
| Capacity | 4 TB |
| Form factor | M.2 2280 |
| Interface | PCIe 4.0 x4, NVMe 2.0 |
| Sequential read | 4,900 MB/s |
| Sequential write | 4,500 MB/s |
| Random 4K read | 1,150K IOPS |
| NAND | 3D TLC, 238-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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Cite this page: Hardware Spec Index, “Mirenta SN-9979 Ultra 4TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/80241590 (accessed 2026-10-19).