Caldera SN-7656 XT 4TB PCIe 4.0 NVMe M.2 2280 SSD
SSDs · Caldera · SKU SN7656-XT · Released 2020 · Updated 2026-10-20
Key facts
| Benchmark index | 10,341 (SSDs scale) |
|---|---|
| Category rank | #28,975 |
| Street price | $249 |
| Power | 7 W (active) |
| Performance per dollar | 41.53 |
| Released | 2020 |
Specifications
| Brand | Caldera |
|---|---|
| Model | Caldera SN-7656 XT |
| Capacity | 4 TB |
| Form factor | M.2 2280 |
| Interface | PCIe 4.0 x4, NVMe 2.0 |
| Sequential read | 5,600 MB/s |
| Sequential write | 4,400 MB/s |
| Random 4K read | 1,100K IOPS |
| NAND | 3D TLC, 218-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 |
|---|---|---|---|
| Strivon SN-7008 Max 4TB PCIe 4.0 NVMe M.2 2280 SSD | 10,685 | $319 | Compare |
| Novexa SN-4025 Ultra 8TB PCIe 5.0 NVMe M.2 2280 SSD | 13,470 | $579 | Compare |
| Novexa SN-2187 Edge 8TB PCIe 5.0 NVMe M.2 2280 SSD | 11,189 | $289 | Compare |
| Altrix SN-3475 Pro 4TB PCIe 4.0 NVMe M.2 2280 SSD | 13,643 | $469 | Compare |
| Novexa SN-1966 Ultra 8TB PCIe 5.0 NVMe M.2 2280 SSD | 11,167 | $379 | Compare |
| Caldera SN-4729 Plus 1TB SATA 2.5-inch SSD | 3,575 | $39 | Compare |
Cite this page: Hardware Spec Index, “Caldera SN-7656 XT 4TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/33336216 (accessed 2026-10-20).