Hardware Spec Index

Caldera SN-6642 Prime 2TB PCIe 4.0 NVMe M.2 2230 SSD

SSDs · Caldera · SKU SN6642-PRIME · Released 2020 · Updated 2026-10-20

Key facts

Benchmark index6,629 (SSDs scale)
Category rank#34,927
Street price$109
Power6 W (active)
Performance per dollar60.82
Released2020

Specifications

BrandCaldera
ModelCaldera SN-6642 Prime
Capacity2 TB
Form factorM.2 2230
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read6,100 MB/s
Sequential write5,200 MB/s
Random 4K read1,170K IOPS
NAND3D QLC, 232-layer
CacheDRAM-less (HMB)
Endurance400 TBW (0.18 DWPD)
Warranty3 years
HeatsinkHeatsink edition available

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-6642 Prime 2TB PCIe 4.0 NVMe M.2 2230 SSD”, https://vextor7.com/item/296460 (accessed 2026-10-20).