Hardware Spec Index

Zephyra CL-9421 XT 420mm AIO Liquid CPU Cooler

CPU Coolers · Zephyra · SKU CL9421-XT · Released 2022 · Updated 2026-10-19

Key facts

Benchmark index1,882 (CPU Coolers scale)
Category rank#36,677
Street price$109
Power17 W
Performance per dollar17.27
Released2022

Specifications

BrandZephyra
ModelZephyra CL-9421 XT
TypeAll-in-one liquid cooler
Radiator420 mm, aluminum, 27 mm thick
Fans3× 140 mm, up to 2,300 RPM
Pump3,400 RPM
Rated cooling330 W (manufacturer rating)
Noise25 dBA (max)
Tubing400 mm, sleeved EPDM
Socket supportAM5, AM4, LGA1851, LGA1700
Warranty5 years

Related guides

AIO Liquid Cooling vs Air Cooling for CPUsCPU TDP, PPT and Turbo Power ExplainedAMD AM5 Socket

Similar CPU Coolers

ModelBenchmarkPriceCompare
Teralux CL-1597 Max 240mm AIO Liquid CPU Cooler884$29Compare
Zephyra CL-5818 Plus Low profile Air CPU Cooler712$19Compare
Zephyra CL-8224 Plus Single tower Air CPU Cooler1,151$39Compare
Zephyra CL-4444 Ti Single tower Air CPU Cooler1,579$69Compare
Teralux CL-4537 Max Single tower Air CPU Cooler1,530$79Compare
Brontix CL-7937 Max Single tower Air CPU Cooler602$19Compare

All CPU Coolers · JSON

Cite this page: Hardware Spec Index, “Zephyra CL-9421 XT 420mm AIO Liquid CPU Cooler”, https://vextor7.com/item/411980 (accessed 2026-10-19).