Hardware Spec Index

Zephyra CL-9921 Prime 280mm AIO Liquid CPU Cooler

CPU Coolers · Zephyra · SKU CL9921-PRIME · Released 2022 · Updated 2026-10-21

Key facts

Benchmark index1,028 (CPU Coolers scale)
Category rank#4,349
Street price$39
Power13 W
Performance per dollar26.36
Released2022

Specifications

BrandZephyra
ModelZephyra CL-9921 Prime
TypeAll-in-one liquid cooler
Radiator280 mm, aluminum, 27 mm thick
Fans2× 140 mm, up to 1,900 RPM
Pump3,300 RPM
Rated cooling280 W (manufacturer rating)
Noise26 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-9921 Prime 280mm AIO Liquid CPU Cooler”, https://vextor7.com/item/7097076 (accessed 2026-10-21).