Hardware Spec Index

Zephyra CL-3421 SE 240mm AIO Liquid CPU Cooler

CPU Coolers · Zephyra · SKU CL3421-SE · Released 2021 · Updated 2026-10-19

Key facts

Benchmark index1,140 (CPU Coolers scale)
Category rank#42,783
Street price$39
Power12 W
Performance per dollar29.23
Released2021

Specifications

BrandZephyra
ModelZephyra CL-3421 SE
TypeAll-in-one liquid cooler
Radiator240 mm, aluminum, 30 mm thick
Fans2× 120 mm, up to 2,000 RPM
Pump2,800 RPM
Rated cooling250 W (manufacturer rating)
Noise35 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
Teralux CL-5717 Edge Dual tower Air CPU Cooler1,637$89Compare
Caldera CL-4889 Ultra 360mm AIO Liquid CPU Cooler1,434$69Compare
Teralux CL-1377 SE Single tower Air CPU Cooler616$19Compare
Zephyra CL-9755 Max Single tower Air CPU Cooler1,139$39Compare
Zephyra CL-7477 Max 240mm AIO Liquid CPU Cooler835$29Compare
Zephyra CL-9176 Plus Single tower Air CPU Cooler1,458$69Compare

All CPU Coolers · JSON

Cite this page: Hardware Spec Index, “Zephyra CL-3421 SE 240mm AIO Liquid CPU Cooler”, https://vextor7.com/item/20116306 (accessed 2026-10-19).