Hardware Spec Index

Brontix CL-9840 Ultra 240mm AIO Liquid CPU Cooler

CPU Coolers · Brontix · SKU CL9840-ULTRA · Released 2025 · Updated 2026-10-19

Key facts

Benchmark index1,031 (CPU Coolers scale)
Category rank#26,719
Street price$29
Power12 W
Performance per dollar35.55
Released2025

Specifications

BrandBrontix
ModelBrontix CL-9840 Ultra
TypeAll-in-one liquid cooler
Radiator240 mm, aluminum, 30 mm thick
Fans2× 120 mm, up to 2,400 RPM
Pump3,300 RPM
Rated cooling250 W (manufacturer rating)
Noise28 dBA (max)
Tubing400 mm, sleeved EPDM
Socket supportAM5, AM4, LGA1851, LGA1700
Warranty5 years

Related guides

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Cite this page: Hardware Spec Index, “Brontix CL-9840 Ultra 240mm AIO Liquid CPU Cooler”, https://vextor7.com/item/10338331 (accessed 2026-10-19).