Caldera SN-6256 Pro 4TB PCIe 4.0 NVMe M.2 2280 SSD
SSDs · Caldera · SKU SN6256-PRO · Released 2022 · Updated 2026-10-19
Key facts
| Benchmark index | 13,026 (SSDs scale) |
|---|---|
| Category rank | #34,186 |
| Street price | $449 |
| Power | 6 W (active) |
| Performance per dollar | 29.01 |
| Released | 2022 |
Specifications
| Brand | Caldera |
|---|---|
| Model | Caldera SN-6256 Pro |
| Capacity | 4 TB |
| Form factor | M.2 2280 |
| Interface | PCIe 4.0 x4, NVMe 2.0 |
| Sequential read | 5,600 MB/s |
| Sequential write | 5,000 MB/s |
| Random 4K read | 1,160K IOPS |
| NAND | 3D TLC, 238-layer |
| Cache | DDR4 DRAM, 4 GB |
| Endurance | 2,400 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
Similar SSDs
| Model | Benchmark | Price | Compare |
|---|---|---|---|
| Caldera SN-9314 Plus 2TB PCIe 4.0 NVMe M.2 2280 SSD | 11,930 | $359 | Compare |
| Altrix SN-7704 XT 4TB PCIe 4.0 NVMe M.2 2280 SSD | 14,747 | $589 | Compare |
| Novexa SN-9789 Ultra 500GB SATA 2.5-inch SSD | 3,069 | $29 | Compare |
| Novexa SN-2167 Edge 2TB PCIe 4.0 NVMe M.2 2280 SSD | 8,368 | $169 | Compare |
| Caldera SN-3915 Plus 4TB PCIe 4.0 NVMe M.2 2280 SSD | 10,861 | $309 | Compare |
| Novexa SN-5915 Ti 4TB PCIe 3.0 NVMe M.2 2280 SSD | 13,256 | $479 | Compare |
Cite this page: Hardware Spec Index, “Caldera SN-6256 Pro 4TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/19397331 (accessed 2026-10-19).