Hardware Spec Index

Zephyra CL-4258 Ultra 420mm AIO Liquid CPU Cooler

CPU Coolers · Zephyra · SKU CL4258-ULTRA · Released 2024 · Updated 2026-10-25

Key facts

Benchmark index2,300 (CPU Coolers scale)
Category rank#22,928
Street price$189
Power17 W
Performance per dollar12.17
Released2024

Specifications

BrandZephyra
ModelZephyra CL-4258 Ultra
TypeAll-in-one liquid cooler
Radiator420 mm, aluminum, 27 mm thick
Fans3× 140 mm, up to 2,400 RPM
Pump3,200 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-9889 Max Low profile Air CPU Cooler760$19Compare
Caldera CL-8328 Prime 420mm AIO Liquid CPU Cooler2,347$189Compare
Zephyra CL-4393 Edge 240mm AIO Liquid CPU Cooler1,156$49Compare
Teralux CL-7086 Pro Dual tower Air CPU Cooler2,003$119Compare
Caldera CL-5945 Ti Single tower Air CPU Cooler1,307$49Compare
Zephyra CL-3245 Prime 240mm AIO Liquid CPU Cooler622$19Compare

All CPU Coolers · JSON

Cite this page: Hardware Spec Index, “Zephyra CL-4258 Ultra 420mm AIO Liquid CPU Cooler”, https://vextor7.com/item/2570461 (accessed 2026-10-25).