Hardware Spec Index

Caldera DR-6558 Ultra DDR4-2666 8GB (2×4GB) CL19 Kit

Memory · Caldera · SKU DR6558-ULTRA · Released 2022 · Updated 2026-10-25

Key facts

Benchmark index2,960 (Memory scale)
Category rank#1,345
Street price$39
Power5 W
Performance per dollar75.90
Released2022

Specifications

BrandCaldera
ModelCaldera DR-6558 Ultra
Memory typeDDR4 UDIMM (288-pin)
SpeedDDR4-2666 (2,666 MT/s)
Kit capacity8 GB (2 × 4 GB)
Timings19-25-25-51
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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Cite this page: Hardware Spec Index, “Caldera DR-6558 Ultra DDR4-2666 8GB (2×4GB) CL19 Kit”, https://vextor7.com/item/46357288 (accessed 2026-10-25).