Hardware Spec Index

Mirenta DR-3977 Pro DDR5-8400 128GB (4×32GB) CL40 Kit

Memory · Mirenta · SKU DR3977-PRO · Released 2023 · Updated 2026-10-23

Key facts

Benchmark index7,569 (Memory scale)
Category rank#28,397
Street price$279
Power22 W
Performance per dollar27.13
Released2023

Specifications

BrandMirenta
ModelMirenta DR-3977 Pro
Memory typeDDR5 UDIMM (288-pin)
SpeedDDR5-8400 (8,400 MT/s)
Kit capacity128 GB (4 × 32 GB)
Timings40-48-48-104
CAS latencyCL40
First-word latency9.52 ns
Voltage1.40 V
ProfileIntel XMP 3.0
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, “Mirenta DR-3977 Pro DDR5-8400 128GB (4×32GB) CL40 Kit”, https://vextor7.com/item/41317059 (accessed 2026-10-23).