Caldera SN-4638 Edge 1TB PCIe 4.0 NVMe M.2 2280 SSD
SSDs · Caldera · SKU SN4638-EDGE · Released 2022 · Updated 2026-10-19
Key facts
| Benchmark index | 8,293 (SSDs scale) |
|---|---|
| Category rank | #16,579 |
| Street price | $149 |
| Power | 5 W (active) |
| Performance per dollar | 55.66 |
| Released | 2022 |
Specifications
| Brand | Caldera |
|---|---|
| Model | Caldera SN-4638 Edge |
| Capacity | 1 TB |
| Form factor | M.2 2280 |
| Interface | PCIe 4.0 x4, NVMe 2.0 |
| Sequential read | 5,600 MB/s |
| Sequential write | 5,100 MB/s |
| Random 4K read | 760K IOPS |
| NAND | 3D TLC, 232-layer |
| Cache | DRAM-less (HMB) |
| Endurance | 600 TBW (0.33 DWPD) |
| Warranty | 5 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
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| Caldera SN-7093 Max 8TB PCIe 5.0 NVMe M.2 2280 SSD | 13,815 | $539 | Compare |
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Cite this page: Hardware Spec Index, “Caldera SN-4638 Edge 1TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/17606296 (accessed 2026-10-19).