Caldera SN-1955 XT 1TB PCIe 4.0 NVMe M.2 2280 SSD
SSDs · Caldera · SKU SN1955-XT · Released 2025 · Updated 2026-10-20
Key facts
| Benchmark index | 5,025 (SSDs scale) |
|---|---|
| Category rank | #44,147 |
| Street price | $49 |
| Power | 7 W (active) |
| Performance per dollar | 102.55 |
| Released | 2025 |
Specifications
| Brand | Caldera |
|---|---|
| Model | Caldera SN-1955 XT |
| Capacity | 1 TB |
| Form factor | M.2 2280 |
| Interface | PCIe 4.0 x4, NVMe 2.0 |
| Sequential read | 6,500 MB/s |
| Sequential write | 5,600 MB/s |
| Random 4K read | 850K IOPS |
| NAND | 3D TLC, 218-layer |
| Cache | DRAM-less (HMB) |
| Endurance | 600 TBW (0.55 DWPD) |
| Warranty | 3 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 |
|---|---|---|---|
| Novexa SN-2566 Ti 4TB PCIe 4.0 NVMe M.2 2280 SSD | 12,381 | $449 | Compare |
| Altrix SN-6186 Plus 8TB PCIe 5.0 NVMe M.2 2280 SSD | 12,666 | $419 | Compare |
| Caldera SN-8090 Max 1TB PCIe 4.0 NVMe M.2 2280 SSD | 6,829 | $119 | Compare |
| Altrix SN-7502 Ti 8TB PCIe 5.0 NVMe M.2 2280 SSD | 14,488 | $599 | Compare |
| Mirenta SN-2711 XT 2TB PCIe 4.0 NVMe M.2 2280 SSD | 11,254 | $379 | Compare |
| Caldera SN-1175 Pro 8TB PCIe 3.0 NVMe M.2 2280 SSD | 11,647 | $409 | Compare |
Cite this page: Hardware Spec Index, “Caldera SN-1955 XT 1TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/3226971 (accessed 2026-10-20).