Hardware Spec Index

Zephyra CL-4256 Ultra 360mm AIO Liquid CPU Cooler

CPU Coolers · Zephyra · SKU CL4256-ULTRA · Released 2023 · Updated 2026-10-18

Key facts

Benchmark index1,876 (CPU Coolers scale)
Category rank#10,064
Street price$129
Power15 W
Performance per dollar14.54
Released2023

Specifications

BrandZephyra
ModelZephyra CL-4256 Ultra
TypeAll-in-one liquid cooler
Radiator360 mm, aluminum, 27 mm thick
Fans3× 120 mm, up to 2,400 RPM
Pump3,100 RPM
Rated cooling300 W (manufacturer rating)
Noise35 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
Brontix CL-1065 Edge 420mm AIO Liquid CPU Cooler2,340$179Compare
Caldera CL-1338 Prime Dual tower Air CPU Cooler2,090$139Compare
Brontix CL-9728 Plus 240mm AIO Liquid CPU Cooler732$19Compare
Zephyra CL-1091 SE Low profile Air CPU Cooler685$19Compare
Caldera CL-3377 Pro 280mm AIO Liquid CPU Cooler894$29Compare
Teralux CL-5510 Pro 360mm AIO Liquid CPU Cooler2,155$139Compare

All CPU Coolers · JSON

Cite this page: Hardware Spec Index, “Zephyra CL-4256 Ultra 360mm AIO Liquid CPU Cooler”, https://vextor7.com/item/11038245 (accessed 2026-10-18).