Altrix SN-4639 XT 8TB PCIe 5.0 NVMe M.2 2280 SSD
SSDs · Altrix · SKU SN4639-XT · Released 2024 · Updated 2026-10-22
Key facts
| Benchmark index | 11,414 (SSDs scale) |
|---|---|
| Category rank | #39,065 |
| Street price | $309 |
| Power | 8 W (active) |
| Performance per dollar | 36.94 |
| Released | 2024 |
Specifications
| Brand | Altrix |
|---|---|
| Model | Altrix SN-4639 XT |
| Capacity | 8 TB |
| Form factor | M.2 2280 |
| Interface | PCIe 5.0 x4, NVMe 2.0 |
| Sequential read | 10,500 MB/s |
| Sequential write | 7,900 MB/s |
| Random 4K read | 2,700K IOPS |
| NAND | 3D TLC, 238-layer |
| Cache | LPDDR4 DRAM, 8 GB |
| Endurance | 4,800 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 |
|---|---|---|---|
| Caldera SN-8569 Ti 4TB PCIe 5.0 NVMe M.2 2280 SSD | 12,249 | $369 | Compare |
| Mirenta SN-6581 Core 4TB PCIe 4.0 NVMe M.2 2280 SSD | 13,379 | $499 | Compare |
| Mirenta SN-4789 Core 1TB PCIe 4.0 NVMe M.2 2280 SSD | 8,787 | $189 | Compare |
| Altrix SN-1049 Ultra 4TB PCIe 5.0 NVMe M.2 2280 SSD | 12,499 | $389 | Compare |
| Novexa SN-6259 XT 2TB PCIe 4.0 NVMe M.2 2230 SSD | 11,507 | $369 | Compare |
| Novexa SN-9758 XT 2TB PCIe 4.0 NVMe M.2 2280 SSD | 10,359 | $249 | Compare |
Cite this page: Hardware Spec Index, “Altrix SN-4639 XT 8TB PCIe 5.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/1497296 (accessed 2026-10-22).