Hardware Spec Index

Caldera SN-2640 Ultra 1TB PCIe 4.0 NVMe M.2 2230 SSD

SSDs · Caldera · SKU SN2640-ULTRA · Released 2021 · Updated 2026-10-21

Key facts

Benchmark index5,600 (SSDs scale)
Category rank#35,129
Street price$79
Power7 W (active)
Performance per dollar70.89
Released2021

Specifications

BrandCaldera
ModelCaldera SN-2640 Ultra
Capacity1 TB
Form factorM.2 2230
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read7,100 MB/s
Sequential write5,900 MB/s
Random 4K read730K IOPS
NAND3D TLC, 238-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-2640 Ultra 1TB PCIe 4.0 NVMe M.2 2230 SSD”, https://vextor7.com/item/2491372 (accessed 2026-10-21).