Hardware Spec Index

Brontix CL-9921 Prime 280mm AIO Liquid CPU Cooler

CPU Coolers · Brontix · SKU CL9921-PRIME · Released 2022 · Updated 2026-10-20

Key facts

Benchmark index1,701 (CPU Coolers scale)
Category rank#5,005
Street price$99
Power13 W
Performance per dollar17.18
Released2022

Specifications

BrandBrontix
ModelBrontix CL-9921 Prime
TypeAll-in-one liquid cooler
Radiator280 mm, aluminum, 30 mm thick
Fans2× 140 mm, up to 1,700 RPM
Pump2,800 RPM
Rated cooling280 W (manufacturer rating)
Noise26 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-9921 Prime 280mm AIO Liquid CPU Cooler”, https://vextor7.com/item/3348815 (accessed 2026-10-20).