Caldera SN-3976 Ultra 1TB PCIe 4.0 NVMe M.2 2230 SSD
SSDs · Caldera · SKU SN3976-ULTRA · Released 2021 · Updated 2026-10-19
Key facts
| Benchmark index | 6,239 (SSDs scale) |
|---|---|
| Category rank | #17,750 |
| Street price | $99 |
| Power | 5 W (active) |
| Performance per dollar | 63.02 |
| Released | 2021 |
Specifications
| Brand | Caldera |
|---|---|
| Model | Caldera SN-3976 Ultra |
| Capacity | 1 TB |
| Form factor | M.2 2230 |
| Interface | PCIe 4.0 x4, NVMe 2.0 |
| Sequential read | 6,100 MB/s |
| Sequential write | 5,100 MB/s |
| Random 4K read | 1,350K IOPS |
| NAND | 3D QLC, 238-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 |
|---|---|---|---|
| Caldera SN-9441 Core 4TB PCIe 4.0 NVMe M.2 2280 SSD | 10,058 | $289 | Compare |
| Novexa SN-6531 Ti 2TB PCIe 4.0 NVMe M.2 2280 SSD | 10,836 | $359 | Compare |
| Altrix SN-9954 XT 2TB PCIe 3.0 NVMe M.2 2280 SSD | 12,404 | $429 | Compare |
| Novexa SN-7938 Ultra 8TB PCIe 5.0 NVMe M.2 2280 SSD | 14,044 | $599 | Compare |
| Caldera SN-4056 SE 1TB PCIe 3.0 NVMe M.2 2280 SSD | 7,788 | $129 | Compare |
| Caldera SN-1495 Plus 1TB PCIe 4.0 NVMe M.2 2280 SSD | 7,433 | $139 | Compare |
Cite this page: Hardware Spec Index, “Caldera SN-3976 Ultra 1TB PCIe 4.0 NVMe M.2 2230 SSD”, https://vextor7.com/item/89171081 (accessed 2026-10-19).