Hardware Spec Index

Caldera CL-2921 Ultra Low profile Air CPU Cooler

CPU Coolers · Caldera · SKU CL2921-ULTRA · Released 2021 · Updated 2026-10-22

Key facts

Benchmark index622 (CPU Coolers scale)
Category rank#49,716
Street price$19
Power3 W
Performance per dollar32.74
Released2021

Specifications

BrandCaldera
ModelCaldera CL-2921 Ultra
TypeLow profile air cooler
Heat pipes4× 6 mm copper
Height50 mm
Fans1× 92 mm PWM, up to 2,100 RPM
Rated cooling95 W (manufacturer rating)
Noise31 dBA (max)
RAM clearanceUnrestricted
Socket supportAM4, LGA1700, LGA1200, LGA115x
Warranty6 years

Related guides

AIO Liquid Cooling vs Air Cooling for CPUsCPU TDP, PPT and Turbo Power Explained

Similar CPU Coolers

ModelBenchmarkPriceCompare
Brontix CL-9023 Core 360mm AIO Liquid CPU Cooler1,397$59Compare
Zephyra CL-5629 SE 280mm AIO Liquid CPU Cooler1,171$59Compare
Zephyra CL-3596 Plus Dual tower Air CPU Cooler1,315$69Compare
Caldera CL-5682 SE 360mm AIO Liquid CPU Cooler1,244$59Compare
Zephyra CL-7742 Max 280mm AIO Liquid CPU Cooler1,179$39Compare
Brontix CL-1128 Edge 240mm AIO Liquid CPU Cooler519$19Compare

All CPU Coolers · JSON

Cite this page: Hardware Spec Index, “Caldera CL-2921 Ultra Low profile Air CPU Cooler”, https://vextor7.com/item/706970 (accessed 2026-10-22).