Caldera SN-6821 SE 1TB PCIe 4.0 NVMe M.2 2230 SSD
SSDs · Caldera · SKU SN6821-SE · Released 2023 · Updated 2026-10-25
Key facts
| Benchmark index | 6,795 (SSDs scale) |
|---|---|
| Category rank | #19,018 |
| Street price | $99 |
| Power | 6 W (active) |
| Performance per dollar | 68.64 |
| Released | 2023 |
Specifications
| Brand | Caldera |
|---|---|
| Model | Caldera SN-6821 SE |
| Capacity | 1 TB |
| Form factor | M.2 2230 |
| Interface | PCIe 4.0 x4, NVMe 2.0 |
| Sequential read | 6,500 MB/s |
| Sequential write | 4,900 MB/s |
| Random 4K read | 740K IOPS |
| NAND | 3D QLC, 218-layer |
| Cache | DRAM-less (HMB) |
| Endurance | 360 TBW (0.33 DWPD) |
| Warranty | 3 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 |
|---|---|---|---|
| Caldera SN-7496 SE 2TB PCIe 3.0 NVMe M.2 2280 SSD | 7,465 | $139 | Compare |
| Altrix SN-8073 Pro 2TB PCIe 4.0 NVMe M.2 2280 SSD | 11,123 | $279 | Compare |
| Altrix SN-7679 Ti 2TB PCIe 5.0 NVMe M.2 2280 SSD | 10,896 | $309 | Compare |
| Strivon SN-5547 Edge 8TB PCIe 5.0 NVMe M.2 2280 SSD | 11,921 | $339 | Compare |
| Altrix SN-3647 Core 2TB PCIe 4.0 NVMe M.2 2280 SSD | 9,389 | $199 | Compare |
| Novexa SN-1052 Max 8TB PCIe 5.0 NVMe M.2 2280 SSD | 13,102 | $479 | Compare |
Cite this page: Hardware Spec Index, “Caldera SN-6821 SE 1TB PCIe 4.0 NVMe M.2 2230 SSD”, https://vextor7.com/item/3056091 (accessed 2026-10-25).