Caldera SN-4666 Ultra 1TB PCIe 4.0 NVMe M.2 2280 SSD
SSDs · Caldera · SKU SN4666-ULTRA · Released 2025 · Updated 2026-10-25
Key facts
| Benchmark index | 8,254 (SSDs scale) |
|---|---|
| Category rank | #18,679 |
| Street price | $209 |
| Power | 5 W (active) |
| Performance per dollar | 39.49 |
| Released | 2025 |
Specifications
| Brand | Caldera |
|---|---|
| Model | Caldera SN-4666 Ultra |
| Capacity | 1 TB |
| Form factor | M.2 2280 |
| Interface | PCIe 4.0 x4, NVMe 2.0 |
| Sequential read | 7,100 MB/s |
| Sequential write | 5,300 MB/s |
| Random 4K read | 1,020K IOPS |
| NAND | 3D TLC, 176-layer |
| Cache | DDR4 DRAM, 1 GB |
| Endurance | 600 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 |
|---|---|---|---|
| Caldera SN-4042 XT 1TB SATA 2.5-inch SSD | 3,649 | $39 | Compare |
| Mirenta SN-1355 Core 1TB PCIe 4.0 NVMe M.2 2280 SSD | 6,993 | $119 | Compare |
| Altrix SN-9285 Pro 1TB PCIe 4.0 NVMe M.2 2280 SSD | 6,519 | $119 | Compare |
| Strivon SN-7267 Max 1TB SATA 2.5-inch SSD | 3,091 | $29 | Compare |
| Altrix SN-1590 Plus 2TB PCIe 3.0 NVMe M.2 2280 SSD | 10,980 | $249 | Compare |
| Strivon SN-6971 Plus 2TB PCIe 4.0 NVMe M.2 2280 SSD | 11,992 | $349 | Compare |
Cite this page: Hardware Spec Index, “Caldera SN-4666 Ultra 1TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/71661560 (accessed 2026-10-25).