Hardware Spec Index

Caldera SN-9478 Ultra 2TB PCIe 3.0 NVMe M.2 2280 SSD

SSDs · Caldera · SKU SN9478-ULTRA · Released 2019 · Updated 2026-10-19

Key facts

Benchmark index6,967 (SSDs scale)
Category rank#7,970
Street price$99
Power6 W (active)
Performance per dollar70.37
Released2019

Specifications

BrandCaldera
ModelCaldera SN-9478 Ultra
Capacity2 TB
Form factorM.2 2280
InterfacePCIe 3.0 x4, NVMe 1.4
Sequential read3,100 MB/s
Sequential write2,500 MB/s
Random 4K read560K IOPS
NAND3D QLC, 176-layer
CacheDRAM-less (HMB)
Endurance720 TBW (0.33 DWPD)
Warranty3 years
HeatsinkNone

Related guides

NVMe SSDs ExplainedM.2 SSD Sizes and KeysSSD Endurance ExplainedDRAM vs DRAM-less SSDsPCIe 4.0 vs PCIe 5.0

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Cite this page: Hardware Spec Index, “Caldera SN-9478 Ultra 2TB PCIe 3.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/917853 (accessed 2026-10-19).