A seed selector assembly for a pneumatic meter employed in agricultural seeding equipment may include a seed selector assembly connected to a multi-functional coupler, in which the seed selector assembly is made up of a rotating disk with a central hole and a gear profile, the disk being enclosed by a front ring and a rear ring, and the multi-functional coupler having two interfaces for connecting motor or driven devices. A pinion may be connected to an end of an axis, the opposite end of which is connected to a crown, the pinion being fitted into the cavity of the rear ring and the circular bore of the front ring, with a housed bearing support. The pinion may interact with the gear profile in order to rotate the disk when at least one of the interfaces is connected to a motor device.