Hardware Spec Index

Caldera CL-3977 Ultra Single tower Air CPU Cooler

CPU Coolers · Caldera · SKU CL3977-ULTRA · Released 2025 · Updated 2026-10-19

Key facts

Benchmark index1,209 (CPU Coolers scale)
Category rank#9,653
Street price$49
Power3 W
Performance per dollar24.67
Released2025

Specifications

BrandCaldera
ModelCaldera CL-3977 Ultra
TypeSingle tower air cooler
Heat pipes4× 6 mm copper
Height155 mm
Fans1× 120 mm PWM, up to 2,200 RPM
Rated cooling180 W (manufacturer rating)
Noise28 dBA (max)
RAM clearanceUnrestricted
Socket supportAM5, AM4, LGA1851, LGA1700
Warranty6 years

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Cite this page: Hardware Spec Index, “Caldera CL-3977 Ultra Single tower Air CPU Cooler”, https://vextor7.com/item/7716629 (accessed 2026-10-19).