Hardware Spec Index

Zephyra CL-6303 Pro 420mm AIO Liquid CPU Cooler

CPU Coolers · Zephyra · SKU CL6303-PRO · Released 2024 · Updated 2026-10-19

Key facts

Benchmark index2,123 (CPU Coolers scale)
Category rank#41,566
Street price$159
Power17 W
Performance per dollar13.35
Released2024

Specifications

BrandZephyra
ModelZephyra CL-6303 Pro
TypeAll-in-one liquid cooler
Radiator420 mm, aluminum, 38 mm thick
Fans3× 140 mm, up to 2,000 RPM
Pump2,900 RPM
Rated cooling330 W (manufacturer rating)
Noise29 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-6303 Pro 420mm AIO Liquid CPU Cooler”, https://vextor7.com/item/7876136 (accessed 2026-10-19).