Hardware Spec Index

Zephyra CL-5421 Pro 280mm AIO Liquid CPU Cooler

CPU Coolers · Zephyra · SKU CL5421-PRO · Released 2023 · Updated 2026-10-24

Key facts

Benchmark index861 (CPU Coolers scale)
Category rank#8,584
Street price$29
Power13 W
Performance per dollar29.69
Released2023

Specifications

BrandZephyra
ModelZephyra CL-5421 Pro
TypeAll-in-one liquid cooler
Radiator280 mm, aluminum, 27 mm thick
Fans2× 140 mm, up to 1,500 RPM
Pump2,800 RPM
Rated cooling280 W (manufacturer rating)
Noise29 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-5421 Pro 280mm AIO Liquid CPU Cooler”, https://vextor7.com/item/73672151 (accessed 2026-10-24).