Hardware Spec Index

Zephyra CL-9643 SE 240mm AIO Liquid CPU Cooler

CPU Coolers · Zephyra · SKU CL9643-SE · Released 2021 · Updated 2026-10-21

Key facts

Benchmark index1,019 (CPU Coolers scale)
Category rank#34,061
Street price$39
Power12 W
Performance per dollar26.13
Released2021

Specifications

BrandZephyra
ModelZephyra CL-9643 SE
TypeAll-in-one liquid cooler
Radiator240 mm, aluminum, 27 mm thick
Fans2× 120 mm, up to 1,900 RPM
Pump2,800 RPM
Rated cooling250 W (manufacturer rating)
Noise30 dBA (max)
Tubing400 mm, sleeved EPDM
Socket supportAM4, LGA1700, LGA1200, LGA115x
Warranty6 years

Related guides

AIO Liquid Cooling vs Air Cooling for CPUsCPU TDP, PPT and Turbo Power Explained

Similar CPU Coolers

ModelBenchmarkPriceCompare
Zephyra CL-1624 Prime 240mm AIO Liquid CPU Cooler1,179$39Compare
Caldera CL-1044 Core Low profile Air CPU Cooler771$19Compare
Zephyra CL-8648 Core 420mm AIO Liquid CPU Cooler2,459$179Compare
Brontix CL-5757 Ultra 240mm AIO Liquid CPU Cooler837$29Compare
Zephyra CL-1912 XT Dual tower Air CPU Cooler1,971$129Compare
Caldera CL-3735 Ultra Single tower Air CPU Cooler2,014$139Compare

All CPU Coolers · JSON

Cite this page: Hardware Spec Index, “Zephyra CL-9643 SE 240mm AIO Liquid CPU Cooler”, https://vextor7.com/item/128599 (accessed 2026-10-21).