Hardware Spec Index

Caldera DR-8421 Ultra DDR4-2666 16GB (2×8GB) CL19 Kit

Memory · Caldera · SKU DR8421-ULTRA · Released 2025 · Updated 2026-10-20

Key facts

Benchmark index2,665 (Memory scale)
Category rank#35,618
Street price$29
Power4 W
Performance per dollar91.90
Released2025

Specifications

BrandCaldera
ModelCaldera DR-8421 Ultra
Memory typeDDR4 UDIMM (288-pin)
SpeedDDR4-2666 (2,666 MT/s)
Kit capacity16 GB (2 × 8 GB)
Timings19-21-21-44
CAS latencyCL19
First-word latency14.25 ns
Voltage1.20 V
ProfileJEDEC (no profile needed)
ECCNon-ECC
Power managementMotherboard-regulated
Heat spreaderAluminum, no lighting

Related guides

DDR4 vs DDR5CAS Latency (CL) and RAM TimingsDDR5 Memory ExplainedXMP vs EXPO

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All Memory · JSON

Cite this page: Hardware Spec Index, “Caldera DR-8421 Ultra DDR4-2666 16GB (2×8GB) CL19 Kit”, https://vextor7.com/item/4680946 (accessed 2026-10-20).