Hardware Spec Index

Teralux CL-3821 Ultra 280mm AIO Liquid CPU Cooler

CPU Coolers · Teralux · SKU CL3821-ULTRA · Released 2021 · Updated 2026-10-22

Key facts

Benchmark index1,031 (CPU Coolers scale)
Category rank#29,555
Street price$29
Power13 W
Performance per dollar35.55
Released2021

Specifications

BrandTeralux
ModelTeralux CL-3821 Ultra
TypeAll-in-one liquid cooler
Radiator280 mm, aluminum, 27 mm thick
Fans2× 140 mm, up to 1,500 RPM
Pump3,400 RPM
Rated cooling280 W (manufacturer rating)
Noise27 dBA (max)
Tubing400 mm, sleeved EPDM
Socket supportAM4, LGA1700, LGA1200, LGA115x
Warranty6 years

Related guides

AIO Liquid Cooling vs Air Cooling for CPUsCPU TDP, PPT and Turbo Power Explained

Similar CPU Coolers

ModelBenchmarkPriceCompare
Brontix CL-3128 Ti Dual tower Air CPU Cooler2,472$159Compare
Brontix CL-4980 Max 240mm AIO Liquid CPU Cooler922$29Compare
Zephyra CL-8696 Ultra Single tower Air CPU Cooler671$19Compare
Zephyra CL-5326 Edge Dual tower Air CPU Cooler2,385$199Compare
Zephyra CL-3865 Max Low profile Air CPU Cooler562$19Compare
Brontix CL-5917 Plus Dual tower Air CPU Cooler2,225$169Compare

All CPU Coolers · JSON

Cite this page: Hardware Spec Index, “Teralux CL-3821 Ultra 280mm AIO Liquid CPU Cooler”, https://vextor7.com/item/4863265 (accessed 2026-10-22).