Hardware Spec Index

Zephyra CL-3857 Prime 420mm AIO Liquid CPU Cooler

CPU Coolers · Zephyra · SKU CL3857-PRIME · Released 2026 · Updated 2026-10-25

Key facts

Benchmark index2,353 (CPU Coolers scale)
Category rank#37,006
Street price$189
Power17 W
Performance per dollar12.45
Released2026

Specifications

BrandZephyra
ModelZephyra CL-3857 Prime
TypeAll-in-one liquid cooler
Radiator420 mm, aluminum, 38 mm thick
Fans3× 140 mm, up to 2,500 RPM
Pump3,000 RPM
Rated cooling330 W (manufacturer rating)
Noise33 dBA (max)
Tubing400 mm, sleeved EPDM
Socket supportAM5, AM4, LGA1851, LGA1700
Warranty5 years

Related guides

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Cite this page: Hardware Spec Index, “Zephyra CL-3857 Prime 420mm AIO Liquid CPU Cooler”, https://vextor7.com/item/94810802 (accessed 2026-10-25).