Hardware Spec Index

Zephyra CL-4320 Ultra 420mm AIO Liquid CPU Cooler

CPU Coolers · Zephyra · SKU CL4320-ULTRA · Released 2019 · Updated 2026-10-21

Key facts

Benchmark index2,118 (CPU Coolers scale)
Category rank#45,967
Street price$129
Power17 W
Performance per dollar16.42
Released2019

Specifications

BrandZephyra
ModelZephyra CL-4320 Ultra
TypeAll-in-one liquid cooler
Radiator420 mm, aluminum, 30 mm thick
Fans3× 140 mm, up to 1,600 RPM
Pump2,800 RPM
Rated cooling330 W (manufacturer rating)
Noise36 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-4320 Ultra 420mm AIO Liquid CPU Cooler”, https://vextor7.com/item/8722110 (accessed 2026-10-21).