Hardware Spec Index

Caldera SN-7491 Plus 8TB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Caldera · SKU SN7491-PLUS · Released 2020 · Updated 2026-10-19

Key facts

Benchmark index13,701 (SSDs scale)
Category rank#31,098
Street price$559
Power8 W (active)
Performance per dollar24.51
Released2020

Specifications

BrandCaldera
ModelCaldera SN-7491 Plus
Capacity8 TB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read5,600 MB/s
Sequential write4,900 MB/s
Random 4K read890K IOPS
NAND3D TLC, 176-layer
CacheDDR4 DRAM, 8 GB
Endurance4,800 TBW (0.33 DWPD)
Warranty5 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-7491 Plus 8TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/19780331 (accessed 2026-10-19).