Hardware Spec Index

Zephyra CL-9843 Ultra 420mm AIO Liquid CPU Cooler

CPU Coolers · Zephyra · SKU CL9843-ULTRA · Released 2024 · Updated 2026-10-26

Key facts

Benchmark index1,945 (CPU Coolers scale)
Category rank#49,668
Street price$109
Power17 W
Performance per dollar17.84
Released2024

Specifications

BrandZephyra
ModelZephyra CL-9843 Ultra
TypeAll-in-one liquid cooler
Radiator420 mm, aluminum, 38 mm thick
Fans3× 140 mm, up to 1,500 RPM
Pump3,300 RPM
Rated cooling330 W (manufacturer rating)
Noise29 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-9843 Ultra 420mm AIO Liquid CPU Cooler”, https://vextor7.com/item/24373254 (accessed 2026-10-26).