Hardware Spec Index

Caldera SN-7940 XT 1TB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Caldera · SKU SN7940-XT · Released 2020 · Updated 2026-10-25

Key facts

Benchmark index4,519 (SSDs scale)
Category rank#23,249
Street price$59
Power6 W (active)
Performance per dollar76.59
Released2020

Specifications

BrandCaldera
ModelCaldera SN-7940 XT
Capacity1 TB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read5,100 MB/s
Sequential write4,500 MB/s
Random 4K read1,310K IOPS
NAND3D TLC, 218-layer
CacheDRAM-less (HMB)
Endurance600 TBW (0.55 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

Similar SSDs

ModelBenchmarkPriceCompare
Caldera SN-2645 Ultra 1TB SATA 2.5-inch SSD3,769$39Compare
Altrix SN-9620 Edge 1TB SATA 2.5-inch SSD4,054$39Compare
Strivon SN-8402 Ti 500GB PCIe 3.0 NVMe M.2 2280 SSD5,640$79Compare
Mirenta SN-4592 SE 1TB PCIe 4.0 NVMe M.2 2280 SSD7,248$109Compare
Caldera SN-4616 Ti 4TB PCIe 4.0 NVMe M.2 2280 SSD10,374$319Compare
Altrix SN-9348 Max 2TB PCIe 4.0 NVMe M.2 2280 SSD11,427$339Compare

All SSDs · JSON

Cite this page: Hardware Spec Index, “Caldera SN-7940 XT 1TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/93979880 (accessed 2026-10-25).