Caldera SN-2021 XT 8TB PCIe 5.0 NVMe M.2 2280 SSD
SSDs · Caldera · SKU SN2021-XT · Released 2025 · Updated 2026-10-19
Key facts
| Benchmark index | 13,444 (SSDs scale) |
|---|---|
| Category rank | #43,176 |
| Street price | $479 |
| Power | 9 W (active) |
| Performance per dollar | 28.07 |
| Released | 2025 |
Specifications
| Brand | Caldera |
|---|---|
| Model | Caldera SN-2021 XT |
| Capacity | 8 TB |
| Form factor | M.2 2280 |
| Interface | PCIe 5.0 x4, NVMe 2.0 |
| Sequential read | 10,900 MB/s |
| Sequential write | 9,600 MB/s |
| Random 4K read | 2,530K IOPS |
| NAND | 3D TLC, 218-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
Similar SSDs
| Model | Benchmark | Price | Compare |
|---|---|---|---|
| Caldera SN-8626 Max 500GB SATA 2.5-inch SSD | 3,514 | $39 | Compare |
| Caldera SN-6751 Pro 4TB PCIe 5.0 NVMe M.2 2280 SSD | 13,635 | $479 | Compare |
| Altrix SN-5641 Ti 2TB PCIe 5.0 NVMe M.2 2280 SSD | 12,506 | $449 | Compare |
| Strivon SN-4256 Pro 4TB PCIe 4.0 NVMe M.2 2280 SSD | 12,245 | $339 | Compare |
| Altrix SN-6740 XT 4TB PCIe 3.0 NVMe M.2 2280 SSD | 13,363 | $519 | Compare |
| Novexa SN-4806 Ultra 8TB PCIe 5.0 NVMe M.2 2280 SSD | 13,138 | $489 | Compare |
Cite this page: Hardware Spec Index, “Caldera SN-2021 XT 8TB PCIe 5.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/17568333 (accessed 2026-10-19).