Hardware Spec Index

Lumora DR-3931 Ultra DDR5-7200 128GB (4×32GB) CL34 SO-DIMM Kit

Memory · Lumora · SKU DR3931-ULTRA · Released 2025 · Updated 2026-10-26

Key facts

Benchmark index7,150 (Memory scale)
Category rank#8,711
Street price$239
Power22 W
Performance per dollar29.92
Released2025

Specifications

BrandLumora
ModelLumora DR-3931 Ultra
Memory typeDDR5 SO-DIMM (262-pin)
SpeedDDR5-7200 (7,200 MT/s)
Kit capacity128 GB (4 × 32 GB)
Timings34-38-38-99
CAS latencyCL34
First-word latency9.44 ns
Voltage1.40 V
ProfileAMD EXPO
ECCOn-die ECC (not system ECC)
Power managementOn-module PMIC
Heat spreaderNone (low profile)

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, “Lumora DR-3931 Ultra DDR5-7200 128GB (4×32GB) CL34 SO-DIMM Kit”, https://vextor7.com/item/31582504 (accessed 2026-10-26).