Hardware Spec Index

Brontix CL-3991 Prime 240mm AIO Liquid CPU Cooler

CPU Coolers · Brontix · SKU CL3991-PRIME · Released 2023 · Updated 2026-10-19

Key facts

Benchmark index651 (CPU Coolers scale)
Category rank#10,335
Street price$19
Power12 W
Performance per dollar34.26
Released2023

Specifications

BrandBrontix
ModelBrontix CL-3991 Prime
TypeAll-in-one liquid cooler
Radiator240 mm, aluminum, 27 mm thick
Fans2× 120 mm, up to 2,200 RPM
Pump3,200 RPM
Rated cooling250 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-3991 Prime 240mm AIO Liquid CPU Cooler”, https://vextor7.com/item/476264 (accessed 2026-10-19).