Hardware Spec Index

Zephyra CL-3981 Ultra 280mm AIO Liquid CPU Cooler

CPU Coolers · Zephyra · SKU CL3981-ULTRA · Released 2019 · Updated 2026-10-23

Key facts

Benchmark index1,137 (CPU Coolers scale)
Category rank#3,632
Street price$39
Power13 W
Performance per dollar29.15
Released2019

Specifications

BrandZephyra
ModelZephyra CL-3981 Ultra
TypeAll-in-one liquid cooler
Radiator280 mm, aluminum, 27 mm thick
Fans2× 140 mm, up to 1,900 RPM
Pump3,100 RPM
Rated cooling280 W (manufacturer rating)
Noise28 dBA (max)
Tubing400 mm, sleeved EPDM
Socket supportAM4, LGA1700, LGA1200, LGA115x
Warranty5 years

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Cite this page: Hardware Spec Index, “Zephyra CL-3981 Ultra 280mm AIO Liquid CPU Cooler”, https://vextor7.com/item/774856 (accessed 2026-10-23).