Hardware Spec Index

Lumora DR-3929 Ultra DDR5-8400 128GB (4×32GB) CL40 SO-DIMM Kit

Memory · Lumora · SKU DR3929-ULTRA · Released 2022 · Updated 2026-10-21

Key facts

Benchmark index8,057 (Memory scale)
Category rank#26,014
Street price$359
Power23 W
Performance per dollar22.44
Released2022

Specifications

BrandLumora
ModelLumora DR-3929 Ultra
Memory typeDDR5 SO-DIMM (262-pin)
SpeedDDR5-8400 (8,400 MT/s)
Kit capacity128 GB (4 × 32 GB)
Timings40-42-42-112
CAS latencyCL40
First-word latency9.52 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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Cite this page: Hardware Spec Index, “Lumora DR-3929 Ultra DDR5-8400 128GB (4×32GB) CL40 SO-DIMM Kit”, https://vextor7.com/item/85538114 (accessed 2026-10-21).