Hardware Spec Index

Zephyra CL-3857 SE 420mm AIO Liquid CPU Cooler

CPU Coolers · Zephyra · SKU CL3857-SE · Released 2023 · Updated 2026-10-19

Key facts

Benchmark index2,380 (CPU Coolers scale)
Category rank#25,375
Street price$179
Power17 W
Performance per dollar13.30
Released2023

Specifications

BrandZephyra
ModelZephyra CL-3857 SE
TypeAll-in-one liquid cooler
Radiator420 mm, aluminum, 38 mm thick
Fans3× 140 mm, up to 1,500 RPM
Pump3,000 RPM
Rated cooling330 W (manufacturer rating)
Noise36 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
Teralux CL-1060 Max 360mm AIO Liquid CPU Cooler1,931$119Compare
Zephyra CL-9705 SE 360mm AIO Liquid CPU Cooler1,634$99Compare
Caldera CL-1812 SE 420mm AIO Liquid CPU Cooler2,015$149Compare
Teralux CL-1888 Plus 360mm AIO Liquid CPU Cooler1,619$89Compare
Caldera CL-8862 Ti Dual tower Air CPU Cooler2,467$179Compare
Zephyra CL-6220 Edge Single tower Air CPU Cooler1,245$49Compare

All CPU Coolers · JSON

Cite this page: Hardware Spec Index, “Zephyra CL-3857 SE 420mm AIO Liquid CPU Cooler”, https://vextor7.com/item/4413656 (accessed 2026-10-19).