Hardware Spec Index

Brontix CL-3947 Prime 280mm AIO Liquid CPU Cooler

CPU Coolers · Brontix · SKU CL3947-PRIME · Released 2021 · Updated 2026-10-19

Key facts

Benchmark index1,011 (CPU Coolers scale)
Category rank#1,178
Street price$29
Power13 W
Performance per dollar34.86
Released2021

Specifications

BrandBrontix
ModelBrontix CL-3947 Prime
TypeAll-in-one liquid cooler
Radiator280 mm, aluminum, 27 mm thick
Fans2× 140 mm, up to 2,400 RPM
Pump2,800 RPM
Rated cooling280 W (manufacturer rating)
Noise25 dBA (max)
Tubing400 mm, sleeved EPDM
Socket supportAM4, LGA1700, LGA1200, LGA115x
Warranty5 years

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Cite this page: Hardware Spec Index, “Brontix CL-3947 Prime 280mm AIO Liquid CPU Cooler”, https://vextor7.com/item/25759719 (accessed 2026-10-19).