Hardware Spec Index

Caldera CL-5421 Ultra 360mm AIO Liquid CPU Cooler

CPU Coolers · Caldera · SKU CL5421-ULTRA · Released 2026 · Updated 2026-10-24

Key facts

Benchmark index1,819 (CPU Coolers scale)
Category rank#2,363
Street price$129
Power15 W
Performance per dollar14.10
Released2026

Specifications

BrandCaldera
ModelCaldera CL-5421 Ultra
TypeAll-in-one liquid cooler
Radiator360 mm, aluminum, 27 mm thick
Fans3× 120 mm, up to 2,000 RPM
Pump3,300 RPM
Rated cooling300 W (manufacturer rating)
Noise31 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-5421 Ultra 360mm AIO Liquid CPU Cooler”, https://vextor7.com/item/29957856 (accessed 2026-10-24).