Caldera SN-8951 XT 4TB PCIe 4.0 NVMe M.2 2280 SSD
SSDs · Caldera · SKU SN8951-XT · Released 2021 · Updated 2026-10-20
Key facts
| Benchmark index | 12,783 (SSDs scale) |
|---|---|
| Category rank | #27,043 |
| Street price | $499 |
| Power | 8 W (active) |
| Performance per dollar | 25.62 |
| Released | 2021 |
Specifications
| Brand | Caldera |
|---|---|
| Model | Caldera SN-8951 XT |
| Capacity | 4 TB |
| Form factor | M.2 2280 |
| Interface | PCIe 4.0 x4, NVMe 2.0 |
| Sequential read | 5,900 MB/s |
| Sequential write | 4,300 MB/s |
| Random 4K read | 700K IOPS |
| NAND | 3D TLC, 176-layer |
| Cache | DDR4 DRAM, 4 GB |
| Endurance | 2,400 TBW (0.33 DWPD) |
| Warranty | 5 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 |
|---|---|---|---|
| Novexa SN-6641 Max 8TB PCIe 4.0 NVMe M.2 2280 SSD | 14,541 | $599 | Compare |
| Caldera SN-4090 SE 1TB SATA 2.5-inch SSD | 4,066 | $39 | Compare |
| Altrix SN-6638 SE 8TB PCIe 3.0 NVMe M.2 2280 SSD | 12,137 | $349 | Compare |
| Caldera SN-3491 Prime 1TB SATA 2.5-inch SSD | 3,343 | $29 | Compare |
| Mirenta SN-6614 Edge 4TB PCIe 4.0 NVMe M.2 2280 SSD | 11,716 | $339 | Compare |
| Strivon SN-9437 Pro 8TB PCIe 4.0 NVMe M.2 2280 SSD | 12,065 | $369 | Compare |
Cite this page: Hardware Spec Index, “Caldera SN-8951 XT 4TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/4747294 (accessed 2026-10-20).