Caldera SN-1891 XT 1TB PCIe 4.0 NVMe M.2 2280 SSD
SSDs · Caldera · SKU SN1891-XT · Released 2024 · Updated 2026-10-21
Key facts
| Benchmark index | 6,152 (SSDs scale) |
|---|---|
| Category rank | #49,870 |
| Street price | $79 |
| Power | 8 W (active) |
| Performance per dollar | 77.87 |
| Released | 2024 |
Specifications
| Brand | Caldera |
|---|---|
| Model | Caldera SN-1891 XT |
| Capacity | 1 TB |
| Form factor | M.2 2280 |
| Interface | PCIe 4.0 x4, NVMe 2.0 |
| Sequential read | 6,600 MB/s |
| Sequential write | 5,000 MB/s |
| Random 4K read | 1,130K IOPS |
| NAND | 3D QLC, 232-layer |
| Cache | DRAM-less (HMB) |
| Endurance | 200 TBW (0.18 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 |
|---|---|---|---|
| Altrix SN-3781 SE 2TB PCIe 4.0 NVMe M.2 2280 SSD | 11,658 | $419 | Compare |
| Novexa SN-1065 Ti 8TB PCIe 5.0 NVMe M.2 2280 SSD | 13,805 | $479 | Compare |
| Novexa SN-1943 SE 500GB SATA 2.5-inch SSD | 3,299 | $39 | Compare |
| Strivon SN-7306 Ultra 8TB PCIe 5.0 NVMe M.2 2280 SSD | 13,070 | $529 | Compare |
| Mirenta SN-2387 SE 2TB PCIe 4.0 NVMe M.2 2280 SSD | 10,467 | $259 | Compare |
| Caldera SN-5471 XT 4TB PCIe 4.0 NVMe M.2 2280 SSD | 11,687 | $349 | Compare |
Cite this page: Hardware Spec Index, “Caldera SN-1891 XT 1TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/1145488 (accessed 2026-10-21).