Hardware Spec Index

Zephyra CL-3663 Ultra 240mm AIO Liquid CPU Cooler

CPU Coolers · Zephyra · SKU CL3663-ULTRA · Released 2023 · Updated 2026-10-19

Key facts

Benchmark index559 (CPU Coolers scale)
Category rank#812
Street price$19
Power12 W
Performance per dollar29.42
Released2023

Specifications

BrandZephyra
ModelZephyra CL-3663 Ultra
TypeAll-in-one liquid cooler
Radiator240 mm, aluminum, 27 mm thick
Fans2× 120 mm, up to 2,400 RPM
Pump3,400 RPM
Rated cooling250 W (manufacturer rating)
Noise26 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
Caldera CL-6315 SE 240mm AIO Liquid CPU Cooler1,105$49Compare
Brontix CL-1647 Plus Dual tower Air CPU Cooler2,096$149Compare
Caldera CL-6780 SE 360mm AIO Liquid CPU Cooler2,480$179Compare
Brontix CL-2038 Ultra Dual tower Air CPU Cooler2,133$159Compare
Brontix CL-4446 Plus Single tower Air CPU Cooler873$29Compare
Caldera CL-2090 Max Single tower Air CPU Cooler2,001$129Compare

All CPU Coolers · JSON

Cite this page: Hardware Spec Index, “Zephyra CL-3663 Ultra 240mm AIO Liquid CPU Cooler”, https://vextor7.com/item/9529121 (accessed 2026-10-19).