Hardware Spec Index

Brontix CL-6421 Pro 280mm AIO Liquid CPU Cooler

CPU Coolers · Brontix · SKU CL6421-PRO · Released 2023 · Updated 2026-10-21

Key facts

Benchmark index1,615 (CPU Coolers scale)
Category rank#9,481
Street price$99
Power13 W
Performance per dollar16.31
Released2023

Specifications

BrandBrontix
ModelBrontix CL-6421 Pro
TypeAll-in-one liquid cooler
Radiator280 mm, aluminum, 27 mm thick
Fans2× 140 mm, up to 2,100 RPM
Pump3,200 RPM
Rated cooling280 W (manufacturer rating)
Noise36 dBA (max)
Tubing400 mm, sleeved EPDM
Socket supportAM5, AM4, LGA1851, LGA1700
Warranty5 years

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Cite this page: Hardware Spec Index, “Brontix CL-6421 Pro 280mm AIO Liquid CPU Cooler”, https://vextor7.com/item/9548657 (accessed 2026-10-21).