The present disclosure discloses a high-speed connector including an insulating body, a number of conductive terminals, a number of conductive terminals, and a conductive plastic. The insulating body has a back surface. The conductive terminals are retained in the insulating body. The conductive plastic is disposed on the back surface of the insulating body. The cables are electrically connected with the conductive terminals. The cables extend beyond the back surface of the insulating body. The cables pass out of the conductive plastic. The high-speed connector of the present disclosure prevents the interference of electromagnetic signals at the back surface of the insulating body where the cables pass through.