Hardware Spec Index

Caldera SN-1940 Plus 4TB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Caldera · SKU SN1940-PLUS · Released 2020 · Updated 2026-10-24

Key facts

Benchmark index14,675 (SSDs scale)
Category rank#40,831
Street price$599
Power7 W (active)
Performance per dollar24.50
Released2020

Specifications

BrandCaldera
ModelCaldera SN-1940 Plus
Capacity4 TB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read7,100 MB/s
Sequential write5,900 MB/s
Random 4K read1,100K IOPS
NAND3D TLC, 176-layer
CacheDDR4 DRAM, 4 GB
Endurance2,400 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-1940 Plus 4TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/14401009 (accessed 2026-10-24).