Hardware Spec Index

Teralux DR-8421 Ultra DDR5-8400 128GB (4×32GB) CL40 Kit

Memory · Teralux · SKU DR8421-ULTRA · Released 2026 · Updated 2026-10-18

Key facts

Benchmark index7,649 (Memory scale)
Category rank#4,792
Street price$309
Power22 W
Performance per dollar24.75
Released2026

Specifications

BrandTeralux
ModelTeralux DR-8421 Ultra
Memory typeDDR5 UDIMM (288-pin)
SpeedDDR5-8400 (8,400 MT/s)
Kit capacity128 GB (4 × 32 GB)
Timings40-48-48-96
CAS latencyCL40
First-word latency9.52 ns
Voltage1.40 V
ProfileAMD EXPO
ECCOn-die ECC (not system ECC)
Power managementOn-module PMIC
Heat spreaderAluminum, no lighting

Related guides

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Cite this page: Hardware Spec Index, “Teralux DR-8421 Ultra DDR5-8400 128GB (4×32GB) CL40 Kit”, https://vextor7.com/item/3467641 (accessed 2026-10-18).