Hardware Spec Index

Zephyra CL-4911 Ultra 280mm AIO Liquid CPU Cooler

CPU Coolers · Zephyra · SKU CL4911-ULTRA · Released 2019 · Updated 2026-10-22

Key facts

Benchmark index810 (CPU Coolers scale)
Category rank#28,501
Street price$19
Power13 W
Performance per dollar42.63
Released2019

Specifications

BrandZephyra
ModelZephyra CL-4911 Ultra
TypeAll-in-one liquid cooler
Radiator280 mm, aluminum, 38 mm thick
Fans2× 140 mm, up to 2,000 RPM
Pump3,100 RPM
Rated cooling280 W (manufacturer rating)
Noise35 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-4911 Ultra 280mm AIO Liquid CPU Cooler”, https://vextor7.com/item/14460587 (accessed 2026-10-22).