A connector assembly includes a receptacle and a plug. The receptacle includes a receptacle housing and a plurality of receptacle contacts received in the housing. The housing includes a mating cavity and a mating face defined on an inner bottom of the mating cavity. Each receptacle contact includes a plate contacting section embedded on the mating face. The plug includes a plug housing inserted in the mating cavity of the receptacle and a plurality of plug contacts received in the plug housing. The housing includes a mating face confronting with mating face of the receptacle. Each plug contact includes an elastic contacting section projecting beyond the mating face of the plug to touch with the receptacle contact.