Hardware Spec Index

Caldera SN-4685 Ultra 500GB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Caldera · SKU SN4685-ULTRA · Released 2021 · Updated 2026-10-21

Key facts

Benchmark index5,467 (SSDs scale)
Category rank#28,621
Street price$69
Power8 W (active)
Performance per dollar79.23
Released2021

Specifications

BrandCaldera
ModelCaldera SN-4685 Ultra
Capacity500 GB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read5,000 MB/s
Sequential write3,400 MB/s
Random 4K read920K IOPS
NAND3D QLC, 218-layer
CacheDRAM-less (HMB)
Endurance120 TBW (0.22 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-4685 Ultra 500GB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/4774411 (accessed 2026-10-21).