Hardware Spec Index

Caldera SN-7181 Ultra 500GB PCIe 4.0 NVMe M.2 2230 SSD

SSDs · Caldera · SKU SN7181-ULTRA · Released 2021 · Updated 2026-10-27

Key facts

Benchmark index6,113 (SSDs scale)
Category rank#49,406
Street price$79
Power6 W (active)
Performance per dollar77.38
Released2021

Specifications

BrandCaldera
ModelCaldera SN-7181 Ultra
Capacity500 GB
Form factorM.2 2230
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read6,100 MB/s
Sequential write4,000 MB/s
Random 4K read1,100K IOPS
NAND3D QLC, 218-layer
CacheDRAM-less (HMB)
Endurance180 TBW (0.33 DWPD)
Warranty3 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-7181 Ultra 500GB PCIe 4.0 NVMe M.2 2230 SSD”, https://vextor7.com/item/65631487 (accessed 2026-10-27).