Hardware Spec Index

Brontix CL-3721 Pro 420mm AIO Liquid CPU Cooler

CPU Coolers · Brontix · SKU CL3721-PRO · Released 2021 · Updated 2026-10-26

Key facts

Benchmark index1,927 (CPU Coolers scale)
Category rank#21,073
Street price$129
Power17 W
Performance per dollar14.94
Released2021

Specifications

BrandBrontix
ModelBrontix CL-3721 Pro
TypeAll-in-one liquid cooler
Radiator420 mm, aluminum, 38 mm thick
Fans3× 140 mm, up to 2,500 RPM
Pump3,000 RPM
Rated cooling330 W (manufacturer rating)
Noise28 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-3721 Pro 420mm AIO Liquid CPU Cooler”, https://vextor7.com/item/9870859 (accessed 2026-10-26).