Hardware Spec Index

Zephyra CL-4421 SE 420mm AIO Liquid CPU Cooler

CPU Coolers · Zephyra · SKU CL4421-SE · Released 2019 · Updated 2026-10-21

Key facts

Benchmark index2,445 (CPU Coolers scale)
Category rank#8,384
Street price$189
Power17 W
Performance per dollar12.94
Released2019

Specifications

BrandZephyra
ModelZephyra CL-4421 SE
TypeAll-in-one liquid cooler
Radiator420 mm, aluminum, 30 mm thick
Fans3× 140 mm, up to 2,200 RPM
Pump3,300 RPM
Rated cooling330 W (manufacturer rating)
Noise34 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-4421 SE 420mm AIO Liquid CPU Cooler”, https://vextor7.com/item/2954476 (accessed 2026-10-21).