Hardware Spec Index

Zephyra CL-1781 Prime 240mm AIO Liquid CPU Cooler

CPU Coolers · Zephyra · SKU CL1781-PRIME · Released 2021 · Updated 2026-10-24

Key facts

Benchmark index719 (CPU Coolers scale)
Category rank#23,048
Street price$19
Power12 W
Performance per dollar37.84
Released2021

Specifications

BrandZephyra
ModelZephyra CL-1781 Prime
TypeAll-in-one liquid cooler
Radiator240 mm, aluminum, 27 mm thick
Fans2× 120 mm, up to 2,500 RPM
Pump3,300 RPM
Rated cooling250 W (manufacturer rating)
Noise24 dBA (max)
Tubing400 mm, sleeved EPDM
Socket supportAM4, LGA1700, LGA1200, LGA115x
Warranty5 years

Related guides

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

Similar CPU Coolers

ModelBenchmarkPriceCompare
Brontix CL-4082 Prime 240mm AIO Liquid CPU Cooler1,042$39Compare
Zephyra CL-4574 Prime Single tower Air CPU Cooler963$39Compare
Zephyra CL-5311 Plus Single tower Air CPU Cooler1,540$69Compare
Brontix CL-3869 Pro Dual tower Air CPU Cooler2,208$159Compare
Zephyra CL-1784 Ultra Dual tower Air CPU Cooler1,991$109Compare
Zephyra CL-9863 XT Dual tower Air CPU Cooler1,683$99Compare

All CPU Coolers · JSON

Cite this page: Hardware Spec Index, “Zephyra CL-1781 Prime 240mm AIO Liquid CPU Cooler”, https://vextor7.com/item/1608997 (accessed 2026-10-24).