The present invention relates to an improved electrical connector adapted to transmit high-definition (HD) digital images. The improved electrical connector comprises a body, a first terminal assembly, a second terminal assembly, a first terminal connecting device, a second terminal connecting device, a first housing and a second housing. The first terminal assembly and the second terminal assembly are adapted to transmit signals, and by using the first housing and the second housing to cover the first terminal assembly and the second terminal assembly simultaneously, the problem of electromagnetic interference (EMI) suffered by the first terminal assembly and the second terminal assembly during high-frequency transmission is obviated, thereby improving the electromagnetic disturbance susceptibility thereof.