Hardware Spec Index

Caldera SN-4656 Ultra 1TB PCIe 3.0 NVMe M.2 2280 SSD

SSDs · Caldera · SKU SN4656-ULTRA · Released 2019 · Updated 2026-10-20

Key facts

Benchmark index6,046 (SSDs scale)
Category rank#4,631
Street price$99
Power5 W (active)
Performance per dollar61.07
Released2019

Specifications

BrandCaldera
ModelCaldera SN-4656 Ultra
Capacity1 TB
Form factorM.2 2280
InterfacePCIe 3.0 x4, NVMe 1.4
Sequential read3,000 MB/s
Sequential write2,700 MB/s
Random 4K read460K IOPS
NAND3D QLC, 238-layer
CacheDRAM-less (HMB)
Endurance360 TBW (0.33 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-4656 Ultra 1TB PCIe 3.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/6132039 (accessed 2026-10-20).