A universal serial bus connector assembly for sealing a plug against the intrusion of foreign material is provided. The connector assembly includes a plug receptacle housing and a plug receptacle supporting structure attached to the plug receptacle housing. A bezel is fitted over the plug receptacle supporting structure. A sealing elastomeric membrane is positioned between the plug receptacle supporting structure and the bezel. A slit is formed in the elastomeric membrane through which the plug is inserted into the plug receptacle housing.