Cryorig M9A Amd Smallest Tower Cpu Cooler With Jet Fin Acceleration System - Silver/BlackProduct Description Cryorig M9A AMD features CRYORIG proprietary Jet Fin Acceleration System. With a total height of 124.6mm, the CRYORIG M9i/M9a is the smallest CRYORIG Tower cooler. Featuring the same materials and cooling technology found on all CRYORIG..