Hardware Spec Index

Caldera SN-7991 Prime 1TB PCIe 3.0 NVMe M.2 2280 SSD

SSDs · Caldera · SKU SN7991-PRIME · Released 2019 · Updated 2026-10-26

Key facts

Benchmark index7,651 (SSDs scale)
Category rank#49,789
Street price$119
Power4 W (active)
Performance per dollar64.29
Released2019

Specifications

BrandCaldera
ModelCaldera SN-7991 Prime
Capacity1 TB
Form factorM.2 2280
InterfacePCIe 3.0 x4, NVMe 1.4
Sequential read2,600 MB/s
Sequential write2,400 MB/s
Random 4K read470K IOPS
NAND3D TLC, 218-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-7991 Prime 1TB PCIe 3.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/82321204 (accessed 2026-10-26).