Hardware Spec Index

Caldera CL-5491 Ultra 420mm AIO Liquid CPU Cooler

CPU Coolers · Caldera · SKU CL5491-ULTRA · Released 2026 · Updated 2026-10-27

Key facts

Benchmark index2,202 (CPU Coolers scale)
Category rank#16,087
Street price$159
Power17 W
Performance per dollar13.85
Released2026

Specifications

BrandCaldera
ModelCaldera CL-5491 Ultra
TypeAll-in-one liquid cooler
Radiator420 mm, aluminum, 27 mm thick
Fans3× 140 mm, up to 2,500 RPM
Pump2,900 RPM
Rated cooling330 W (manufacturer rating)
Noise31 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, “Caldera CL-5491 Ultra 420mm AIO Liquid CPU Cooler”, https://vextor7.com/item/7746628 (accessed 2026-10-27).