Caldera SN-9521 Ultra 1TB PCIe 4.0 NVMe M.2 2280 SSD
SSDs · Caldera · SKU SN9521-ULTRA · Released 2025 · Updated 2026-10-19
Key facts
| Benchmark index | 6,932 (SSDs scale) |
|---|---|
| Category rank | #40,905 |
| Street price | $119 |
| Power | 8 W (active) |
| Performance per dollar | 58.25 |
| Released | 2025 |
Specifications
| Brand | Caldera |
|---|---|
| Model | Caldera SN-9521 Ultra |
| Capacity | 1 TB |
| Form factor | M.2 2280 |
| Interface | PCIe 4.0 x4, NVMe 2.0 |
| Sequential read | 4,800 MB/s |
| Sequential write | 4,400 MB/s |
| Random 4K read | 1,060K IOPS |
| NAND | 3D TLC, 176-layer |
| Cache | DRAM-less (HMB) |
| Endurance | 600 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
Similar SSDs
| Model | Benchmark | Price | Compare |
|---|---|---|---|
| Mirenta SN-8849 SE 8TB PCIe 5.0 NVMe M.2 2280 SSD | 14,301 | $579 | Compare |
| Caldera SN-4978 Prime 2TB PCIe 4.0 NVMe M.2 2280 SSD | 11,338 | $379 | Compare |
| Altrix SN-4301 Ultra 1TB SATA 2.5-inch SSD | 3,638 | $39 | Compare |
| Altrix SN-8559 Ultra 4TB PCIe 4.0 NVMe M.2 2280 SSD | 12,626 | $479 | Compare |
| Mirenta SN-2375 Edge 500GB SATA 2.5-inch SSD | 4,057 | $39 | Compare |
| Caldera SN-3752 Ultra 8TB PCIe 4.0 NVMe M.2 2280 SSD | 14,875 | $499 | Compare |
Cite this page: Hardware Spec Index, “Caldera SN-9521 Ultra 1TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/90126510 (accessed 2026-10-19).