Hardware Spec Index

Zephyra CL-5643 Ultra 280mm AIO Liquid CPU Cooler

CPU Coolers · Zephyra · SKU CL5643-ULTRA · Released 2026 · Updated 2026-10-21

Key facts

Benchmark index1,105 (CPU Coolers scale)
Category rank#3,363
Street price$39
Power13 W
Performance per dollar28.33
Released2026

Specifications

BrandZephyra
ModelZephyra CL-5643 Ultra
TypeAll-in-one liquid cooler
Radiator280 mm, aluminum, 27 mm thick
Fans2× 140 mm, up to 2,100 RPM
Pump2,900 RPM
Rated cooling280 W (manufacturer rating)
Noise31 dBA (max)
Tubing400 mm, sleeved EPDM
Socket supportAM5, AM4, LGA1851, LGA1700
Warranty5 years

Related guides

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Cite this page: Hardware Spec Index, “Zephyra CL-5643 Ultra 280mm AIO Liquid CPU Cooler”, https://vextor7.com/item/8523129 (accessed 2026-10-21).