Hardware Spec Index

Zephyra CL-9403 Prime 420mm AIO Liquid CPU Cooler

CPU Coolers · Zephyra · SKU CL9403-PRIME · Released 2025 · Updated 2026-10-26

Key facts

Benchmark index2,279 (CPU Coolers scale)
Category rank#8,958
Street price$149
Power17 W
Performance per dollar15.30
Released2025

Specifications

BrandZephyra
ModelZephyra CL-9403 Prime
TypeAll-in-one liquid cooler
Radiator420 mm, aluminum, 38 mm thick
Fans3× 140 mm, up to 1,900 RPM
Pump2,800 RPM
Rated cooling330 W (manufacturer rating)
Noise24 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 SocketIntel LGA1851 Socket

Similar CPU Coolers

ModelBenchmarkPriceCompare
Caldera CL-3957 SE Low profile Air CPU Cooler546$19Compare
Brontix CL-3325 SE Single tower Air CPU Cooler1,446$59Compare
Brontix CL-3470 XT 240mm AIO Liquid CPU Cooler969$29Compare
Brontix CL-9235 SE Low profile Air CPU Cooler779$29Compare
Caldera CL-5302 SE 360mm AIO Liquid CPU Cooler1,934$119Compare
Caldera CL-5995 Ti 240mm AIO Liquid CPU Cooler1,013$39Compare

All CPU Coolers · JSON

Cite this page: Hardware Spec Index, “Zephyra CL-9403 Prime 420mm AIO Liquid CPU Cooler”, https://vextor7.com/item/2090868 (accessed 2026-10-26).