Hardware Spec Index

Caldera CL-4521 Plus 280mm AIO Liquid CPU Cooler

CPU Coolers · Caldera · SKU CL4521-PLUS · Released 2025 · Updated 2026-10-25

Key facts

Benchmark index931 (CPU Coolers scale)
Category rank#28,234
Street price$29
Power13 W
Performance per dollar32.10
Released2025

Specifications

BrandCaldera
ModelCaldera CL-4521 Plus
TypeAll-in-one liquid cooler
Radiator280 mm, aluminum, 38 mm thick
Fans2× 140 mm, up to 2,200 RPM
Pump2,800 RPM
Rated cooling280 W (manufacturer rating)
Noise25 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-4521 Plus 280mm AIO Liquid CPU Cooler”, https://vextor7.com/item/6890103 (accessed 2026-10-25).