Hardware Spec Index

Caldera CL-6903 Plus 420mm AIO Liquid CPU Cooler

CPU Coolers · Caldera · SKU CL6903-PLUS · Released 2026 · Updated 2026-10-25

Key facts

Benchmark index1,936 (CPU Coolers scale)
Category rank#9,099
Street price$129
Power17 W
Performance per dollar15.01
Released2026

Specifications

BrandCaldera
ModelCaldera CL-6903 Plus
TypeAll-in-one liquid cooler
Radiator420 mm, aluminum, 27 mm thick
Fans3× 140 mm, up to 2,000 RPM
Pump3,200 RPM
Rated cooling330 W (manufacturer rating)
Noise30 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, “Caldera CL-6903 Plus 420mm AIO Liquid CPU Cooler”, https://vextor7.com/item/4389027 (accessed 2026-10-25).