Hardware Spec Index

Zephyra CL-6447 Prime 420mm AIO Liquid CPU Cooler

CPU Coolers · Zephyra · SKU CL6447-PRIME · Released 2023 · Updated 2026-10-19

Key facts

Benchmark index2,408 (CPU Coolers scale)
Category rank#409
Street price$189
Power17 W
Performance per dollar12.74
Released2023

Specifications

BrandZephyra
ModelZephyra CL-6447 Prime
TypeAll-in-one liquid cooler
Radiator420 mm, aluminum, 27 mm thick
Fans3× 140 mm, up to 1,800 RPM
Pump3,300 RPM
Rated cooling330 W (manufacturer rating)
Noise28 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-6447 Prime 420mm AIO Liquid CPU Cooler”, https://vextor7.com/item/92372851 (accessed 2026-10-19).