Hardware Spec Index

Caldera SN-4821 Ultra 500GB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Caldera · SKU SN4821-ULTRA · Released 2023 · Updated 2026-10-20

Key facts

Benchmark index4,612 (SSDs scale)
Category rank#29,570
Street price$49
Power6 W (active)
Performance per dollar94.12
Released2023

Specifications

BrandCaldera
ModelCaldera SN-4821 Ultra
Capacity500 GB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read6,200 MB/s
Sequential write3,800 MB/s
Random 4K read1,200K IOPS
NAND3D QLC, 232-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-4821 Ultra 500GB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/8104585 (accessed 2026-10-20).