Cx4 may refer to: * The Beretta Cx4 Storm, a pistol-caliber carbine * The Cx4 chip, a math coprocessor by Capcom * The Mazda CX-4, compact crossover vehicle * 10GBASE-CX4, a copper based 10 Gigabit Ethernet PHY * CX 4 Radio Rural, a radio station in Uruguay This disambiguation page lists articles associated with the same title formed as a letter-number combination. If an internal link led you here, you may wish to change the link to point directly to the intended article.