Altrix SN-6991 Pro 4TB PCIe 4.0 NVMe M.2 2280 SSD
SSDs · Altrix · SKU SN6991-PRO · Released 2021 · Updated 2026-10-26
Key facts
| Benchmark index | 12,634 (SSDs scale) |
|---|---|
| Category rank | #40,453 |
| Street price | $419 |
| Power | 7 W (active) |
| Performance per dollar | 30.15 |
| Released | 2021 |
Specifications
| Brand | Altrix |
|---|---|
| Model | Altrix SN-6991 Pro |
| Capacity | 4 TB |
| Form factor | M.2 2280 |
| Interface | PCIe 4.0 x4, NVMe 2.0 |
| Sequential read | 5,200 MB/s |
| Sequential write | 4,900 MB/s |
| Random 4K read | 1,370K 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
Similar SSDs
| Model | Benchmark | Price | Compare |
|---|---|---|---|
| Strivon SN-7616 Edge 2TB PCIe 4.0 NVMe M.2 2280 SSD | 12,213 | $389 | Compare |
| Mirenta SN-5531 XT 8TB PCIe 4.0 NVMe M.2 2280 SSD | 13,434 | $509 | Compare |
| Novexa SN-4513 Pro 2TB PCIe 3.0 NVMe M.2 2280 SSD | 9,824 | $269 | Compare |
| Strivon SN-3471 Max 8TB PCIe 4.0 NVMe M.2 2280 SSD | 11,927 | $399 | Compare |
| Altrix SN-1190 XT 1TB PCIe 4.0 NVMe M.2 2280 SSD | 6,895 | $119 | Compare |
| Strivon SN-5779 Pro 8TB PCIe 4.0 NVMe M.2 2280 SSD | 14,843 | $589 | Compare |
Cite this page: Hardware Spec Index, “Altrix SN-6991 Pro 4TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/707893 (accessed 2026-10-26).