Caldera SN-3621 Ultra 8TB PCIe 5.0 NVMe M.2 2280 SSD
SSDs · Caldera · SKU SN3621-ULTRA · Released 2025 · Updated 2026-10-23
Key facts
| Benchmark index | 13,574 (SSDs scale) |
|---|---|
| Category rank | #20,576 |
| Street price | $469 |
| Power | 9 W (active) |
| Performance per dollar | 28.94 |
| Released | 2025 |
Specifications
| Brand | Caldera |
|---|---|
| Model | Caldera SN-3621 Ultra |
| Capacity | 8 TB |
| Form factor | M.2 2280 |
| Interface | PCIe 5.0 x4, NVMe 2.0 |
| Sequential read | 11,700 MB/s |
| Sequential write | 9,700 MB/s |
| Random 4K read | 2,230K IOPS |
| NAND | 3D TLC, 176-layer |
| Cache | LPDDR4 DRAM, 8 GB |
| Endurance | 4,800 TBW (0.33 DWPD) |
| Warranty | 5 years |
| Heatsink | Included (recommended for sustained loads) |
Related guides
NVMe SSDs ExplainedM.2 SSD Sizes and KeysSSD Endurance ExplainedDRAM vs DRAM-less SSDsPCIe 5.0 ExplainedPCIe 4.0 vs PCIe 5.0
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Cite this page: Hardware Spec Index, “Caldera SN-3621 Ultra 8TB PCIe 5.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/6986836 (accessed 2026-10-23).