Hardware Spec Index

Brontix CL-6421 Prime 240mm AIO Liquid CPU Cooler

CPU Coolers · Brontix · SKU CL6421-PRIME · Released 2021 · Updated 2026-10-20

Key facts

Benchmark index690 (CPU Coolers scale)
Category rank#18,045
Street price$19
Power12 W
Performance per dollar36.32
Released2021

Specifications

BrandBrontix
ModelBrontix CL-6421 Prime
TypeAll-in-one liquid cooler
Radiator240 mm, aluminum, 27 mm thick
Fans2× 120 mm, up to 1,600 RPM
Pump3,200 RPM
Rated cooling250 W (manufacturer rating)
Noise25 dBA (max)
Tubing400 mm, sleeved EPDM
Socket supportAM4, LGA1700, LGA1200, LGA115x
Warranty6 years

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Cite this page: Hardware Spec Index, “Brontix CL-6421 Prime 240mm AIO Liquid CPU Cooler”, https://vextor7.com/item/7916611 (accessed 2026-10-20).