Hardware Spec Index

Teralux DR-5581 Ultra DDR4-2666 8GB (2×4GB) CL16 Kit

Memory · Teralux · SKU DR5581-ULTRA · Released 2021 · Updated 2026-10-22

Key facts

Benchmark index3,139 (Memory scale)
Category rank#48,258
Street price$39
Power5 W
Performance per dollar80.49
Released2021

Specifications

BrandTeralux
ModelTeralux DR-5581 Ultra
Memory typeDDR4 UDIMM (288-pin)
SpeedDDR4-2666 (2,666 MT/s)
Kit capacity8 GB (2 × 4 GB)
Timings16-18-18-45
CAS latencyCL16
First-word latency12.00 ns
Voltage1.20 V
ProfileJEDEC (no profile needed)
ECCNon-ECC
Power managementMotherboard-regulated
Heat spreaderAluminum, RGB lighting

Related guides

DDR4 vs DDR5CAS Latency (CL) and RAM TimingsDDR5 Memory ExplainedXMP vs EXPO

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Cite this page: Hardware Spec Index, “Teralux DR-5581 Ultra DDR4-2666 8GB (2×4GB) CL16 Kit”, https://vextor7.com/item/7905025 (accessed 2026-10-22).