Hardware Spec Index

Caldera SN-4975 Ultra 500GB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Caldera · SKU SN4975-ULTRA · Released 2024 · Updated 2026-10-23

Key facts

Benchmark index5,772 (SSDs scale)
Category rank#1
Street price$79
Power7 W (active)
Performance per dollar73.06
Released2024

Specifications

BrandCaldera
ModelCaldera SN-4975 Ultra
Capacity500 GB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read4,800 MB/s
Sequential write3,300 MB/s
Random 4K read1,400K IOPS
NAND3D QLC, 238-layer
CacheDRAM-less (HMB)
Endurance120 TBW (0.22 DWPD)
Warranty3 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-4975 Ultra 500GB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/83660806 (accessed 2026-10-23).