Hardware Spec Index

Zephyra CL-5603 Ultra 280mm AIO Liquid CPU Cooler

CPU Coolers · Zephyra · SKU CL5603-ULTRA · Released 2021 · Updated 2026-10-25

Key facts

Benchmark index1,569 (CPU Coolers scale)
Category rank#17,187
Street price$89
Power13 W
Performance per dollar17.63
Released2021

Specifications

BrandZephyra
ModelZephyra CL-5603 Ultra
TypeAll-in-one liquid cooler
Radiator280 mm, aluminum, 27 mm thick
Fans2× 140 mm, up to 2,100 RPM
Pump3,200 RPM
Rated cooling280 W (manufacturer rating)
Noise31 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-5603 Ultra 280mm AIO Liquid CPU Cooler”, https://vextor7.com/item/3371518 (accessed 2026-10-25).