Hardware Spec Index

Caldera SN-3943 Ultra 2TB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Caldera · SKU SN3943-ULTRA · Released 2020 · Updated 2026-10-27

Key facts

Benchmark index7,491 (SSDs scale)
Category rank#33,789
Street price$129
Power5 W (active)
Performance per dollar58.07
Released2020

Specifications

BrandCaldera
ModelCaldera SN-3943 Ultra
Capacity2 TB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read7,400 MB/s
Sequential write6,400 MB/s
Random 4K read1,240K IOPS
NAND3D QLC, 176-layer
CacheDRAM-less (HMB)
Endurance720 TBW (0.33 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-3943 Ultra 2TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/1868341 (accessed 2026-10-27).