Hardware Spec Index

Brontix CL-9399 Ultra 420mm AIO Liquid CPU Cooler

CPU Coolers · Brontix · SKU CL9399-ULTRA · Released 2023 · Updated 2026-10-22

Key facts

Benchmark index1,956 (CPU Coolers scale)
Category rank#43,852
Street price$129
Power17 W
Performance per dollar15.16
Released2023

Specifications

BrandBrontix
ModelBrontix CL-9399 Ultra
TypeAll-in-one liquid cooler
Radiator420 mm, aluminum, 38 mm thick
Fans3× 140 mm, up to 1,900 RPM
Pump3,000 RPM
Rated cooling330 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-9399 Ultra 420mm AIO Liquid CPU Cooler”, https://vextor7.com/item/5907700 (accessed 2026-10-22).