Altrix SN-4781 XT 8TB PCIe 5.0 NVMe M.2 2280 SSD
SSDs · Altrix · SKU SN4781-XT · Released 2025 · Updated 2026-10-24
Key facts
| Benchmark index | 11,338 (SSDs scale) |
|---|---|
| Category rank | #22,596 |
| Street price | $319 |
| Power | 8 W (active) |
| Performance per dollar | 35.54 |
| Released | 2025 |
Specifications
| Brand | Altrix |
|---|---|
| Model | Altrix SN-4781 XT |
| Capacity | 8 TB |
| Form factor | M.2 2280 |
| Interface | PCIe 5.0 x4, NVMe 2.0 |
| Sequential read | 12,500 MB/s |
| Sequential write | 9,000 MB/s |
| Random 4K read | 1,510K 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
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| Model | Benchmark | Price | Compare |
|---|---|---|---|
| Caldera SN-9615 Max 8TB PCIe 4.0 NVMe M.2 2280 SSD | 13,786 | $599 | Compare |
| Altrix SN-7038 XT 2TB PCIe 4.0 NVMe M.2 2280 SSD | 7,916 | $139 | Compare |
| Altrix SN-5166 Plus 8TB PCIe 5.0 NVMe M.2 2280 SSD | 14,214 | $539 | Compare |
| Novexa SN-7446 Prime 2TB PCIe 4.0 NVMe M.2 2230 SSD | 10,168 | $289 | Compare |
| Caldera SN-1333 SE 2TB PCIe 4.0 NVMe M.2 2280 SSD | 8,605 | $159 | Compare |
| Altrix SN-2681 Pro 8TB PCIe 3.0 NVMe M.2 2280 SSD | 12,582 | $359 | Compare |
Cite this page: Hardware Spec Index, “Altrix SN-4781 XT 8TB PCIe 5.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/3628270 (accessed 2026-10-24).