Hardware Spec Index

Caldera SN-6425 Ultra 1TB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Caldera · SKU SN6425-ULTRA · Released 2026 · Updated 2026-10-20

Key facts

Benchmark index8,103 (SSDs scale)
Category rank#43,359
Street price$159
Power6 W (active)
Performance per dollar50.96
Released2026

Specifications

BrandCaldera
ModelCaldera SN-6425 Ultra
Capacity1 TB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read6,800 MB/s
Sequential write4,900 MB/s
Random 4K read750K IOPS
NAND3D TLC, 232-layer
CacheDRAM-less (HMB)
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-6425 Ultra 1TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/284080 (accessed 2026-10-20).