Hardware Spec Index

Zephyra CL-5421 Core 420mm AIO Liquid CPU Cooler

CPU Coolers · Zephyra · SKU CL5421-CORE · Released 2022 · Updated 2026-10-19

Key facts

Benchmark index2,385 (CPU Coolers scale)
Category rank#29,450
Street price$169
Power17 W
Performance per dollar14.11
Released2022

Specifications

BrandZephyra
ModelZephyra CL-5421 Core
TypeAll-in-one liquid cooler
Radiator420 mm, aluminum, 38 mm thick
Fans3× 140 mm, up to 1,800 RPM
Pump3,400 RPM
Rated cooling330 W (manufacturer rating)
Noise36 dBA (max)
Tubing400 mm, sleeved EPDM
Socket supportAM5, AM4, LGA1851, LGA1700
Warranty6 years

Related guides

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

Similar CPU Coolers

ModelBenchmarkPriceCompare
Brontix CL-2206 Max Dual tower Air CPU Cooler1,657$99Compare
Caldera CL-3880 Max Low profile Air CPU Cooler1,130$49Compare
Brontix CL-1837 Max 420mm AIO Liquid CPU Cooler2,397$199Compare
Brontix CL-8792 Ultra 240mm AIO Liquid CPU Cooler532$19Compare
Teralux CL-2863 Plus Low profile Air CPU Cooler530$19Compare
Teralux CL-3789 XT Single tower Air CPU Cooler1,482$79Compare

All CPU Coolers · JSON

Cite this page: Hardware Spec Index, “Zephyra CL-5421 Core 420mm AIO Liquid CPU Cooler”, https://vextor7.com/item/80248162 (accessed 2026-10-19).