Hardware Spec Index

Zephyra CL-5641 Ultra 420mm AIO Liquid CPU Cooler

CPU Coolers · Zephyra · SKU CL5641-ULTRA · Released 2022 · Updated 2026-10-23

Key facts

Benchmark index2,025 (CPU Coolers scale)
Category rank#7,927
Street price$159
Power17 W
Performance per dollar12.74
Released2022

Specifications

BrandZephyra
ModelZephyra CL-5641 Ultra
TypeAll-in-one liquid cooler
Radiator420 mm, aluminum, 27 mm thick
Fans3× 140 mm, up to 1,700 RPM
Pump3,100 RPM
Rated cooling330 W (manufacturer rating)
Noise33 dBA (max)
Tubing400 mm, sleeved EPDM
Socket supportAM5, AM4, LGA1851, LGA1700
Warranty5 years

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Cite this page: Hardware Spec Index, “Zephyra CL-5641 Ultra 420mm AIO Liquid CPU Cooler”, https://vextor7.com/item/4881043 (accessed 2026-10-23).