Hardware Spec Index

Brontix CL-3743 Ultra 420mm AIO Liquid CPU Cooler

CPU Coolers · Brontix · SKU CL3743-ULTRA · Released 2025 · Updated 2026-10-25

Key facts

Benchmark index2,032 (CPU Coolers scale)
Category rank#3,153
Street price$119
Power17 W
Performance per dollar17.08
Released2025

Specifications

BrandBrontix
ModelBrontix CL-3743 Ultra
TypeAll-in-one liquid cooler
Radiator420 mm, aluminum, 30 mm thick
Fans3× 140 mm, up to 1,800 RPM
Pump3,400 RPM
Rated cooling330 W (manufacturer rating)
Noise36 dBA (max)
Tubing400 mm, sleeved EPDM
Socket supportAM5, AM4, LGA1851, LGA1700
Warranty6 years

Related guides

AIO Liquid Cooling vs Air Cooling for CPUsCPU TDP, PPT and Turbo Power ExplainedAMD AM5 SocketIntel LGA1851 Socket

Similar CPU Coolers

ModelBenchmarkPriceCompare
Brontix CL-5329 Ultra 360mm AIO Liquid CPU Cooler1,994$149Compare
Zephyra CL-7943 SE Dual tower Air CPU Cooler1,717$99Compare
Caldera CL-6697 Ti 240mm AIO Liquid CPU Cooler608$19Compare
Brontix CL-8759 SE 280mm AIO Liquid CPU Cooler1,311$49Compare
Caldera CL-4048 Prime 420mm AIO Liquid CPU Cooler2,005$129Compare
Zephyra CL-5073 Pro 240mm AIO Liquid CPU Cooler747$19Compare

All CPU Coolers · JSON

Cite this page: Hardware Spec Index, “Brontix CL-3743 Ultra 420mm AIO Liquid CPU Cooler”, https://vextor7.com/item/35300316 (accessed 2026-10-25).