Altrix SN-6421 SE 8TB PCIe 4.0 NVMe M.2 2280 SSD
SSDs · Altrix · SKU SN6421-SE · Released 2022 · Updated 2026-10-21
Key facts
| Benchmark index | 14,618 (SSDs scale) |
|---|---|
| Category rank | #1,905 |
| Street price | $509 |
| Power | 6 W (active) |
| Performance per dollar | 28.72 |
| Released | 2022 |
Specifications
| Brand | Altrix |
|---|---|
| Model | Altrix SN-6421 SE |
| Capacity | 8 TB |
| Form factor | M.2 2280 |
| Interface | PCIe 4.0 x4, NVMe 2.0 |
| Sequential read | 6,000 MB/s |
| Sequential write | 5,600 MB/s |
| Random 4K read | 1,110K IOPS |
| NAND | 3D TLC, 218-layer |
| Cache | DDR4 DRAM, 8 GB |
| Endurance | 4,800 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 |
|---|---|---|---|
| Altrix SN-5382 Pro 4TB PCIe 4.0 NVMe M.2 2280 SSD | 12,156 | $449 | Compare |
| Caldera SN-9741 Prime 8TB PCIe 5.0 NVMe M.2 2280 SSD | 13,420 | $469 | Compare |
| Caldera SN-8734 Pro 1TB PCIe 4.0 NVMe M.2 2280 SSD | 8,158 | $189 | Compare |
| Novexa SN-5786 Core 500GB SATA 2.5-inch SSD | 3,108 | $29 | Compare |
| Altrix SN-8127 Pro 4TB PCIe 4.0 NVMe M.2 2280 SSD | 12,792 | $459 | Compare |
| Altrix SN-9309 SE 2TB PCIe 5.0 NVMe M.2 2280 SSD | 11,689 | $399 | Compare |
Cite this page: Hardware Spec Index, “Altrix SN-6421 SE 8TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/10320199 (accessed 2026-10-21).