Altrix SN-3521 Pro 4TB PCIe 4.0 NVMe M.2 2280 SSD
SSDs · Altrix · SKU SN3521-PRO · Released 2022 · Updated 2026-10-18
Key facts
| Benchmark index | 14,345 (SSDs scale) |
|---|---|
| Category rank | #24,127 |
| Street price | $539 |
| Power | 8 W (active) |
| Performance per dollar | 26.61 |
| Released | 2022 |
Specifications
| Brand | Altrix |
|---|---|
| Model | Altrix SN-3521 Pro |
| Capacity | 4 TB |
| Form factor | M.2 2280 |
| Interface | PCIe 4.0 x4, NVMe 2.0 |
| Sequential read | 6,900 MB/s |
| Sequential write | 5,900 MB/s |
| Random 4K read | 1,390K IOPS |
| NAND | 3D TLC, 238-layer |
| Cache | DDR4 DRAM, 4 GB |
| Endurance | 2,400 TBW (0.33 DWPD) |
| Warranty | 5 years |
| Heatsink | Heatsink edition available |
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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| Model | Benchmark | Price | Compare |
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| Caldera SN-2516 Pro 2TB PCIe 4.0 NVMe M.2 2280 SSD | 12,741 | $439 | Compare |
| Altrix SN-3872 Ti 1TB PCIe 4.0 NVMe M.2 2280 SSD | 6,365 | $89 | Compare |
| Caldera SN-8169 Pro 500GB SATA 2.5-inch SSD | 3,574 | $39 | Compare |
| Caldera SN-1357 SE 4TB PCIe 5.0 NVMe M.2 2280 SSD | 11,491 | $419 | Compare |
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Cite this page: Hardware Spec Index, “Altrix SN-3521 Pro 4TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/17518783 (accessed 2026-10-18).