Hardware Spec Index

Caldera CL-2921 Ultra Single tower Air CPU Cooler

CPU Coolers · Caldera · SKU CL2921-ULTRA · Released 2019 · Updated 2026-10-22

Key facts

Benchmark index1,616 (CPU Coolers scale)
Category rank#32,915
Street price$89
Power3 W
Performance per dollar18.16
Released2019

Specifications

BrandCaldera
ModelCaldera CL-2921 Ultra
TypeSingle tower air cooler
Heat pipes4× 6 mm copper
Height155 mm
Fans1× 120 mm PWM, up to 1,600 RPM
Rated cooling180 W (manufacturer rating)
Noise23 dBA (max)
RAM clearanceUnrestricted
Socket supportAM4, LGA1700, LGA1200, LGA115x
Warranty6 years

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Cite this page: Hardware Spec Index, “Caldera CL-2921 Ultra Single tower Air CPU Cooler”, https://vextor7.com/item/560869 (accessed 2026-10-22).