Hardware Spec Index

Brontix CL-4421 Ultra 240mm AIO Liquid CPU Cooler

CPU Coolers · Brontix · SKU CL4421-ULTRA · Released 2023 · Updated 2026-10-25

Key facts

Benchmark index518 (CPU Coolers scale)
Category rank#22,763
Street price$19
Power12 W
Performance per dollar27.26
Released2023

Specifications

BrandBrontix
ModelBrontix CL-4421 Ultra
TypeAll-in-one liquid cooler
Radiator240 mm, aluminum, 38 mm thick
Fans2× 120 mm, up to 1,600 RPM
Pump3,300 RPM
Rated cooling250 W (manufacturer rating)
Noise29 dBA (max)
Tubing400 mm, sleeved EPDM
Socket supportAM5, AM4, LGA1851, LGA1700
Warranty5 years

Related guides

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Cite this page: Hardware Spec Index, “Brontix CL-4421 Ultra 240mm AIO Liquid CPU Cooler”, https://vextor7.com/item/16384147 (accessed 2026-10-25).