Hardware Spec Index

Caldera SN-6394 Ultra 1TB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Caldera · SKU SN6394-ULTRA · Released 2021 · Updated 2026-10-20

Key facts

Benchmark index8,984 (SSDs scale)
Category rank#28,278
Street price$189
Power6 W (active)
Performance per dollar47.53
Released2021

Specifications

BrandCaldera
ModelCaldera SN-6394 Ultra
Capacity1 TB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read6,300 MB/s
Sequential write5,700 MB/s
Random 4K read1,230K IOPS
NAND3D TLC, 238-layer
CacheDDR4 DRAM, 1 GB
Endurance600 TBW (0.33 DWPD)
Warranty5 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-6394 Ultra 1TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/50830398 (accessed 2026-10-20).