Hardware Spec Index

Zephyra CL-6391 Prime 420mm AIO Liquid CPU Cooler

CPU Coolers · Zephyra · SKU CL6391-PRIME · Released 2025 · Updated 2026-10-22

Key facts

Benchmark index1,811 (CPU Coolers scale)
Category rank#45,114
Street price$119
Power17 W
Performance per dollar15.22
Released2025

Specifications

BrandZephyra
ModelZephyra CL-6391 Prime
TypeAll-in-one liquid cooler
Radiator420 mm, aluminum, 30 mm thick
Fans3× 140 mm, up to 1,700 RPM
Pump3,300 RPM
Rated cooling330 W (manufacturer rating)
Noise31 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, “Zephyra CL-6391 Prime 420mm AIO Liquid CPU Cooler”, https://vextor7.com/item/53475901 (accessed 2026-10-22).