Hardware Spec Index

Zephyra CL-3940 XT 420mm AIO Liquid CPU Cooler

CPU Coolers · Zephyra · SKU CL3940-XT · Released 2025 · Updated 2026-10-24

Key facts

Benchmark index2,215 (CPU Coolers scale)
Category rank#12,273
Street price$149
Power17 W
Performance per dollar14.87
Released2025

Specifications

BrandZephyra
ModelZephyra CL-3940 XT
TypeAll-in-one liquid cooler
Radiator420 mm, aluminum, 30 mm thick
Fans3× 140 mm, up to 2,400 RPM
Pump2,900 RPM
Rated cooling330 W (manufacturer rating)
Noise29 dBA (max)
Tubing400 mm, sleeved EPDM
Socket supportAM5, AM4, LGA1851, LGA1700
Warranty6 years

Related guides

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Cite this page: Hardware Spec Index, “Zephyra CL-3940 XT 420mm AIO Liquid CPU Cooler”, https://vextor7.com/item/182075 (accessed 2026-10-24).