Hardware Spec Index

Zephyra CL-6447 Ultra 280mm AIO Liquid CPU Cooler

CPU Coolers · Zephyra · SKU CL6447-ULTRA · Released 2021 · Updated 2026-10-18

Key facts

Benchmark index914 (CPU Coolers scale)
Category rank#38,202
Street price$29
Power13 W
Performance per dollar31.52
Released2021

Specifications

BrandZephyra
ModelZephyra CL-6447 Ultra
TypeAll-in-one liquid cooler
Radiator280 mm, aluminum, 38 mm thick
Fans2× 140 mm, up to 1,900 RPM
Pump3,400 RPM
Rated cooling280 W (manufacturer rating)
Noise36 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-6447 Ultra 280mm AIO Liquid CPU Cooler”, https://vextor7.com/item/17532170 (accessed 2026-10-18).