Caldera SN-9477 Ultra 8TB PCIe 5.0 NVMe M.2 2280 SSD
SSDs · Caldera · SKU SN9477-ULTRA · Released 2025 · Updated 2026-10-21
Key facts
| Benchmark index | 12,305 (SSDs scale) |
|---|---|
| Category rank | #5,297 |
| Street price | $369 |
| Power | 10 W (active) |
| Performance per dollar | 33.35 |
| Released | 2025 |
Specifications
| Brand | Caldera |
|---|---|
| Model | Caldera SN-9477 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 | 9,000 MB/s |
| Random 4K read | 2,350K IOPS |
| NAND | 3D TLC, 218-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
Similar SSDs
| Model | Benchmark | Price | Compare |
|---|---|---|---|
| Caldera SN-2214 XT 4TB PCIe 4.0 NVMe M.2 2280 SSD | 12,297 | $389 | Compare |
| Mirenta SN-5745 Plus 1TB SATA 2.5-inch SSD | 4,062 | $39 | Compare |
| Novexa SN-6564 SE 8TB PCIe 4.0 NVMe M.2 2280 SSD | 13,651 | $539 | Compare |
| Strivon SN-1196 XT 8TB PCIe 4.0 NVMe M.2 2280 SSD | 12,927 | $459 | Compare |
| Caldera SN-8597 Pro 8TB PCIe 5.0 NVMe M.2 2280 SSD | 14,900 | $599 | Compare |
| Novexa SN-7077 XT 4TB PCIe 5.0 NVMe M.2 2280 SSD | 14,441 | $549 | Compare |
Cite this page: Hardware Spec Index, “Caldera SN-9477 Ultra 8TB PCIe 5.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/4337091 (accessed 2026-10-21).