Hardware Spec Index

Caldera CL-5521 Plus 420mm AIO Liquid CPU Cooler

CPU Coolers · Caldera · SKU CL5521-PLUS · Released 2020 · Updated 2026-10-20

Key facts

Benchmark index2,249 (CPU Coolers scale)
Category rank#24,140
Street price$179
Power17 W
Performance per dollar12.56
Released2020

Specifications

BrandCaldera
ModelCaldera CL-5521 Plus
TypeAll-in-one liquid cooler
Radiator420 mm, aluminum, 30 mm thick
Fans3× 140 mm, up to 1,700 RPM
Pump2,800 RPM
Rated cooling330 W (manufacturer rating)
Noise33 dBA (max)
Tubing400 mm, sleeved EPDM
Socket supportAM4, LGA1700, LGA1200, LGA115x
Warranty6 years

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Cite this page: Hardware Spec Index, “Caldera CL-5521 Plus 420mm AIO Liquid CPU Cooler”, https://vextor7.com/item/33339191 (accessed 2026-10-20).