Hardware Spec Index

Brontix CL-9421 Ultra 280mm AIO Liquid CPU Cooler

CPU Coolers · Brontix · SKU CL9421-ULTRA · Released 2023 · Updated 2026-10-19

Key facts

Benchmark index1,636 (CPU Coolers scale)
Category rank#39,672
Street price$99
Power13 W
Performance per dollar16.53
Released2023

Specifications

BrandBrontix
ModelBrontix CL-9421 Ultra
TypeAll-in-one liquid cooler
Radiator280 mm, aluminum, 27 mm thick
Fans2× 140 mm, up to 2,400 RPM
Pump3,100 RPM
Rated cooling280 W (manufacturer rating)
Noise35 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-9421 Ultra 280mm AIO Liquid CPU Cooler”, https://vextor7.com/item/47921582 (accessed 2026-10-19).