Caldera SN-6958 XT 8TB PCIe 5.0 NVMe M.2 2280 SSD
SSDs · Caldera · SKU SN6958-XT · Released 2025 · Updated 2026-10-26
Key facts
| Benchmark index | 12,739 (SSDs scale) |
|---|---|
| Category rank | #10,715 |
| Street price | $399 |
| Power | 8 W (active) |
| Performance per dollar | 31.93 |
| Released | 2025 |
Specifications
| Brand | Caldera |
|---|---|
| Model | Caldera SN-6958 XT |
| Capacity | 8 TB |
| Form factor | M.2 2280 |
| Interface | PCIe 5.0 x4, NVMe 2.0 |
| Sequential read | 10,200 MB/s |
| Sequential write | 8,400 MB/s |
| Random 4K read | 2,160K IOPS |
| NAND | 3D TLC, 176-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 |
|---|---|---|---|
| Altrix SN-5115 Prime 8TB PCIe 5.0 NVMe M.2 2280 SSD | 11,805 | $419 | Compare |
| Caldera SN-9901 Core 4TB PCIe 4.0 NVMe M.2 2280 SSD | 10,049 | $269 | Compare |
| Caldera SN-1294 Core 4TB PCIe 4.0 NVMe M.2 2280 SSD | 13,690 | $419 | Compare |
| Mirenta SN-5120 Pro 8TB PCIe 4.0 NVMe M.2 2280 SSD | 13,521 | $499 | Compare |
| Caldera SN-6630 XT 8TB PCIe 5.0 NVMe M.2 2280 SSD | 13,052 | $409 | Compare |
| Mirenta SN-1579 Plus 4TB PCIe 4.0 NVMe M.2 2280 SSD | 12,466 | $469 | Compare |
Cite this page: Hardware Spec Index, “Caldera SN-6958 XT 8TB PCIe 5.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/4855522 (accessed 2026-10-26).