Hardware Spec Index

Caldera SN-7491 Prime 1TB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Caldera · SKU SN7491-PRIME · Released 2026 · Updated 2026-10-20

Key facts

Benchmark index7,281 (SSDs scale)
Category rank#22,014
Street price$139
Power8 W (active)
Performance per dollar52.38
Released2026

Specifications

BrandCaldera
ModelCaldera SN-7491 Prime
Capacity1 TB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read6,300 MB/s
Sequential write6,000 MB/s
Random 4K read1,070K IOPS
NAND3D TLC, 232-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

Similar SSDs

ModelBenchmarkPriceCompare
Novexa SN-2394 Edge 1TB PCIe 4.0 NVMe M.2 2280 SSD5,542$69Compare
Mirenta SN-8485 Prime 8TB PCIe 5.0 NVMe M.2 2280 SSD12,774$459Compare
Altrix SN-6144 SE 8TB PCIe 4.0 NVMe M.2 2280 SSD14,900$519Compare
Caldera SN-1460 Pro 4TB PCIe 5.0 NVMe M.2 2280 SSD13,862$419Compare
Mirenta SN-2085 Ultra 500GB PCIe 4.0 NVMe M.2 2230 SSD6,430$89Compare
Novexa SN-2974 Plus 1TB PCIe 4.0 NVMe M.2 2280 SSD8,857$169Compare

All SSDs · JSON

Cite this page: Hardware Spec Index, “Caldera SN-7491 Prime 1TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/54375037 (accessed 2026-10-20).