Hardware Spec Index

Lumora DR-3639 Ultra DDR4-4000 64GB (2×32GB) CL19 SO-DIMM Kit

Memory · Lumora · SKU DR3639-ULTRA · Released 2020 · Updated 2026-10-21

Key facts

Benchmark index8,663 (Memory scale)
Category rank#1,386
Street price$379
Power8 W
Performance per dollar22.86
Released2020

Specifications

BrandLumora
ModelLumora DR-3639 Ultra
Memory typeDDR4 SO-DIMM (260-pin)
SpeedDDR4-4000 (4,000 MT/s)
Kit capacity64 GB (2 × 32 GB)
Timings19-19-19-55
CAS latencyCL19
First-word latency9.50 ns
Voltage1.35 V
ProfileIntel XMP 2.0
ECCNon-ECC
Power managementMotherboard-regulated
Heat spreaderNone (low profile)

Related guides

DDR4 vs DDR5CAS Latency (CL) and RAM TimingsXMP vs EXPODDR5 Memory Explained

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Cite this page: Hardware Spec Index, “Lumora DR-3639 Ultra DDR4-4000 64GB (2×32GB) CL19 SO-DIMM Kit”, https://vextor7.com/item/940966 (accessed 2026-10-21).