Caldera SN-3639 XT 1TB PCIe 4.0 NVMe M.2 2280 SSD
SSDs · Caldera · SKU SN3639-XT · Released 2022 · Updated 2026-10-22
Key facts
| Benchmark index | 9,907 (SSDs scale) |
|---|---|
| Category rank | #35 |
| Street price | $259 |
| Power | 7 W (active) |
| Performance per dollar | 38.25 |
| Released | 2022 |
Specifications
| Brand | Caldera |
|---|---|
| Model | Caldera SN-3639 XT |
| Capacity | 1 TB |
| Form factor | M.2 2280 |
| Interface | PCIe 4.0 x4, NVMe 2.0 |
| Sequential read | 5,300 MB/s |
| Sequential write | 4,800 MB/s |
| Random 4K read | 1,110K IOPS |
| NAND | 3D TLC, 218-layer |
| Cache | DDR4 DRAM, 1 GB |
| 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
Similar SSDs
Cite this page: Hardware Spec Index, “Caldera SN-3639 XT 1TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/10197010 (accessed 2026-10-22).