Hardware Spec Index

Brontix CL-9855 Ultra 420mm AIO Liquid CPU Cooler

CPU Coolers · Brontix · SKU CL9855-ULTRA · Released 2025 · Updated 2026-10-19

Key facts

Benchmark index1,961 (CPU Coolers scale)
Category rank#11,928
Street price$119
Power17 W
Performance per dollar16.48
Released2025

Specifications

BrandBrontix
ModelBrontix CL-9855 Ultra
TypeAll-in-one liquid cooler
Radiator420 mm, aluminum, 27 mm thick
Fans3× 140 mm, up to 2,200 RPM
Pump3,400 RPM
Rated cooling330 W (manufacturer rating)
Noise30 dBA (max)
Tubing400 mm, sleeved EPDM
Socket supportAM5, AM4, LGA1851, LGA1700
Warranty6 years

Related guides

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Cite this page: Hardware Spec Index, “Brontix CL-9855 Ultra 420mm AIO Liquid CPU Cooler”, https://vextor7.com/item/1965664 (accessed 2026-10-19).