Hardware Spec Index

Zephyra CL-8503 Pro 280mm AIO Liquid CPU Cooler

CPU Coolers · Zephyra · SKU CL8503-PRO · Released 2019 · Updated 2026-10-18

Key facts

Benchmark index1,157 (CPU Coolers scale)
Category rank#17,658
Street price$49
Power13 W
Performance per dollar23.61
Released2019

Specifications

BrandZephyra
ModelZephyra CL-8503 Pro
TypeAll-in-one liquid cooler
Radiator280 mm, aluminum, 38 mm thick
Fans2× 140 mm, up to 1,500 RPM
Pump3,200 RPM
Rated cooling280 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-8503 Pro 280mm AIO Liquid CPU Cooler”, https://vextor7.com/item/20008863 (accessed 2026-10-18).