Hardware Spec Index

Zephyra CL-3756 Ultra 280mm AIO Liquid CPU Cooler

CPU Coolers · Zephyra · SKU CL3756-ULTRA · Released 2025 · Updated 2026-10-24

Key facts

Benchmark index1,042 (CPU Coolers scale)
Category rank#27,579
Street price$39
Power13 W
Performance per dollar26.72
Released2025

Specifications

BrandZephyra
ModelZephyra CL-3756 Ultra
TypeAll-in-one liquid cooler
Radiator280 mm, aluminum, 38 mm thick
Fans2× 140 mm, up to 2,100 RPM
Pump3,000 RPM
Rated cooling280 W (manufacturer rating)
Noise36 dBA (max)
Tubing400 mm, sleeved EPDM
Socket supportAM5, AM4, LGA1851, LGA1700
Warranty6 years

Related guides

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Cite this page: Hardware Spec Index, “Zephyra CL-3756 Ultra 280mm AIO Liquid CPU Cooler”, https://vextor7.com/item/1000138 (accessed 2026-10-24).