Hardware Spec Index

Caldera DR-5138 Ultra DDR5-6400 48GB (2×24GB) CL32 Kit

Memory · Caldera · SKU DR5138-ULTRA · Released 2022 · Updated 2026-10-21

Key facts

Benchmark index6,288 (Memory scale)
Category rank#669
Street price$189
Power10 W
Performance per dollar33.27
Released2022

Specifications

BrandCaldera
ModelCaldera DR-5138 Ultra
Memory typeDDR5 UDIMM (288-pin)
SpeedDDR5-6400 (6,400 MT/s)
Kit capacity48 GB (2 × 24 GB)
Timings32-38-38-80
CAS latencyCL32
First-word latency10.00 ns
Voltage1.35 V
ProfileXMP 3.0 + EXPO
ECCOn-die ECC (not system ECC)
Power managementOn-module PMIC
Heat spreaderAluminum, RGB lighting

Related guides

DDR5 Memory ExplainedDDR4 vs DDR5CAS Latency (CL) and RAM TimingsXMP vs EXPO

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All Memory · JSON

Cite this page: Hardware Spec Index, “Caldera DR-5138 Ultra DDR5-6400 48GB (2×24GB) CL32 Kit”, https://vextor7.com/item/6257293 (accessed 2026-10-21).