Hardware Spec Index

Brontix CL-9903 XT 420mm AIO Liquid CPU Cooler

CPU Coolers · Brontix · SKU CL9903-XT · Released 2023 · Updated 2026-10-19

Key facts

Benchmark index2,320 (CPU Coolers scale)
Category rank#14,981
Street price$179
Power17 W
Performance per dollar12.96
Released2023

Specifications

BrandBrontix
ModelBrontix CL-9903 XT
TypeAll-in-one liquid cooler
Radiator420 mm, aluminum, 30 mm thick
Fans3× 140 mm, up to 1,700 RPM
Pump3,100 RPM
Rated cooling330 W (manufacturer rating)
Noise31 dBA (max)
Tubing400 mm, sleeved EPDM
Socket supportAM5, AM4, LGA1851, LGA1700
Warranty6 years

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Cite this page: Hardware Spec Index, “Brontix CL-9903 XT 420mm AIO Liquid CPU Cooler”, https://vextor7.com/item/52967 (accessed 2026-10-19).