Hardware Spec Index

Zephyra CL-3749 Ultra 280mm AIO Liquid CPU Cooler

CPU Coolers · Zephyra · SKU CL3749-ULTRA · Released 2023 · Updated 2026-10-24

Key facts

Benchmark index854 (CPU Coolers scale)
Category rank#5,342
Street price$29
Power13 W
Performance per dollar29.45
Released2023

Specifications

BrandZephyra
ModelZephyra CL-3749 Ultra
TypeAll-in-one liquid cooler
Radiator280 mm, aluminum, 27 mm thick
Fans2× 140 mm, up to 2,200 RPM
Pump3,400 RPM
Rated cooling280 W (manufacturer rating)
Noise32 dBA (max)
Tubing400 mm, sleeved EPDM
Socket supportAM5, AM4, LGA1851, LGA1700
Warranty6 years

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Cite this page: Hardware Spec Index, “Zephyra CL-3749 Ultra 280mm AIO Liquid CPU Cooler”, https://vextor7.com/item/6161944 (accessed 2026-10-24).