Caldera SN-6637 Ultra 500GB PCIe 4.0 NVMe M.2 2280 SSD
SSDs · Caldera · SKU SN6637-ULTRA · Released 2021 · Updated 2026-10-20
Key facts
| Benchmark index | 6,187 (SSDs scale) |
|---|---|
| Category rank | #29,080 |
| Street price | $89 |
| Power | 6 W (active) |
| Performance per dollar | 69.52 |
| Released | 2021 |
Specifications
| Brand | Caldera |
|---|---|
| Model | Caldera SN-6637 Ultra |
| Capacity | 500 GB |
| Form factor | M.2 2280 |
| Interface | PCIe 4.0 x4, NVMe 2.0 |
| Sequential read | 6,000 MB/s |
| Sequential write | 4,000 MB/s |
| Random 4K read | 1,170K IOPS |
| NAND | 3D TLC, 176-layer |
| Cache | DRAM-less (HMB) |
| Endurance | 300 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 |
|---|---|---|---|
| Strivon SN-8626 Edge 8TB PCIe 5.0 NVMe M.2 2280 SSD | 10,533 | $359 | Compare |
| Caldera SN-3147 Plus 4TB PCIe 3.0 NVMe M.2 2280 SSD | 13,364 | $419 | Compare |
| Altrix SN-8511 Max 2TB PCIe 4.0 NVMe M.2 2280 SSD | 10,999 | $319 | Compare |
| Altrix SN-7140 Max 2TB PCIe 4.0 NVMe M.2 2280 SSD | 9,488 | $239 | Compare |
| Altrix SN-8694 Pro 1TB SATA 2.5-inch SSD | 3,561 | $39 | Compare |
| Altrix SN-1736 Edge 2TB PCIe 4.0 NVMe M.2 2280 SSD | 11,016 | $349 | Compare |
Cite this page: Hardware Spec Index, “Caldera SN-6637 Ultra 500GB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/3902848 (accessed 2026-10-20).