Caldera SN-3956 XT 2TB PCIe 4.0 NVMe M.2 2280 SSD
SSDs · Caldera · SKU SN3956-XT · Released 2026 · Updated 2026-10-22
Key facts
| Benchmark index | 10,085 (SSDs scale) |
|---|---|
| Category rank | #3,034 |
| Street price | $249 |
| Power | 8 W (active) |
| Performance per dollar | 40.50 |
| Released | 2026 |
Specifications
| Brand | Caldera |
|---|---|
| Model | Caldera SN-3956 XT |
| Capacity | 2 TB |
| Form factor | M.2 2280 |
| Interface | PCIe 4.0 x4, NVMe 2.0 |
| Sequential read | 7,000 MB/s |
| Sequential write | 6,000 MB/s |
| Random 4K read | 1,170K IOPS |
| NAND | 3D TLC, 176-layer |
| Cache | DDR4 DRAM, 2 GB |
| Endurance | 1,200 TBW (0.33 DWPD) |
| Warranty | 5 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
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| Altrix SN-5783 Edge 2TB PCIe 4.0 NVMe M.2 2280 SSD | 13,666 | $489 | Compare |
| Strivon SN-7018 Pro 4TB PCIe 5.0 NVMe M.2 2280 SSD | 11,839 | $399 | Compare |
| Strivon SN-1078 Pro 8TB PCIe 4.0 NVMe M.2 2280 SSD | 13,239 | $439 | Compare |
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Cite this page: Hardware Spec Index, “Caldera SN-3956 XT 2TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/31318846 (accessed 2026-10-22).