Hardware Spec Index

Mirenta DR-3977 Ultra DDR5-7600 128GB (4×32GB) CL38 Kit

Memory · Mirenta · SKU DR3977-ULTRA · Released 2022 · Updated 2026-10-21

Key facts

Benchmark index8,290 (Memory scale)
Category rank#1,616
Street price$269
Power22 W
Performance per dollar30.82
Released2022

Specifications

BrandMirenta
ModelMirenta DR-3977 Ultra
Memory typeDDR5 UDIMM (288-pin)
SpeedDDR5-7600 (7,600 MT/s)
Kit capacity128 GB (4 × 32 GB)
Timings38-38-38-114
CAS latencyCL38
First-word latency10.00 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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Cite this page: Hardware Spec Index, “Mirenta DR-3977 Ultra DDR5-7600 128GB (4×32GB) CL38 Kit”, https://vextor7.com/item/9502354 (accessed 2026-10-21).