Hardware Spec Index

Zephyra CL-3743 Prime 420mm AIO Liquid CPU Cooler

CPU Coolers · Zephyra · SKU CL3743-PRIME · Released 2021 · Updated 2026-10-19

Key facts

Benchmark index1,951 (CPU Coolers scale)
Category rank#38,113
Street price$119
Power17 W
Performance per dollar16.39
Released2021

Specifications

BrandZephyra
ModelZephyra CL-3743 Prime
TypeAll-in-one liquid cooler
Radiator420 mm, aluminum, 27 mm thick
Fans3× 140 mm, up to 2,200 RPM
Pump2,900 RPM
Rated cooling330 W (manufacturer rating)
Noise24 dBA (max)
Tubing400 mm, sleeved EPDM
Socket supportAM4, LGA1700, LGA1200, LGA115x
Warranty5 years

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Cite this page: Hardware Spec Index, “Zephyra CL-3743 Prime 420mm AIO Liquid CPU Cooler”, https://vextor7.com/item/8772174 (accessed 2026-10-19).