Caldera SN-1221 Ultra 1TB PCIe 4.0 NVMe M.2 2280 SSD
SSDs · Caldera · SKU SN1221-ULTRA · Released 2021 · Updated 2026-10-19
Key facts
| Benchmark index | 5,041 (SSDs scale) |
|---|---|
| Category rank | #9,930 |
| Street price | $59 |
| Power | 7 W (active) |
| Performance per dollar | 85.44 |
| Released | 2021 |
Specifications
| Brand | Caldera |
|---|---|
| Model | Caldera SN-1221 Ultra |
| Capacity | 1 TB |
| Form factor | M.2 2280 |
| Interface | PCIe 4.0 x4, NVMe 2.0 |
| Sequential read | 5,000 MB/s |
| Sequential write | 3,800 MB/s |
| Random 4K read | 1,090K IOPS |
| NAND | 3D QLC, 238-layer |
| Cache | DRAM-less (HMB) |
| Endurance | 360 TBW (0.33 DWPD) |
| Warranty | 3 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 |
|---|---|---|---|
| Novexa SN-5652 Core 4TB PCIe 3.0 NVMe M.2 2280 SSD | 12,136 | $419 | Compare |
| Strivon SN-5097 XT 8TB PCIe 5.0 NVMe M.2 2280 SSD | 11,729 | $379 | Compare |
| Novexa SN-6958 Ti 1TB PCIe 4.0 NVMe M.2 2280 SSD | 7,230 | $139 | Compare |
| Altrix SN-1843 Ultra 1TB PCIe 4.0 NVMe M.2 2280 SSD | 8,149 | $159 | Compare |
| Caldera SN-8094 Ti 2TB PCIe 3.0 NVMe M.2 2280 SSD | 11,659 | $369 | Compare |
| Altrix SN-9190 Plus 500GB SATA 2.5-inch SSD | 3,674 | $29 | Compare |
Cite this page: Hardware Spec Index, “Caldera SN-1221 Ultra 1TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/30838 (accessed 2026-10-19).