Hardware Spec Index

Zephyra CL-4638 Ultra 360mm AIO Liquid CPU Cooler

CPU Coolers · Zephyra · SKU CL4638-ULTRA · Released 2019 · Updated 2026-10-22

Key facts

Benchmark index2,027 (CPU Coolers scale)
Category rank#49,532
Street price$139
Power15 W
Performance per dollar14.58
Released2019

Specifications

BrandZephyra
ModelZephyra CL-4638 Ultra
TypeAll-in-one liquid cooler
Radiator360 mm, aluminum, 30 mm thick
Fans3× 120 mm, up to 2,200 RPM
Pump3,000 RPM
Rated cooling300 W (manufacturer rating)
Noise26 dBA (max)
Tubing400 mm, sleeved EPDM
Socket supportAM4, LGA1700, LGA1200, LGA115x
Warranty6 years

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Cite this page: Hardware Spec Index, “Zephyra CL-4638 Ultra 360mm AIO Liquid CPU Cooler”, https://vextor7.com/item/3328202 (accessed 2026-10-22).