Electrical receptacle connector with shell

An electrical connector ( 100 ) adaptor for connecting with a complementary connector in a mating direction, comprises a shell ( 1 ), an insulative housing ( 2 ) received in the shell and a plurality of contacts ( 3 ) received in the housing. The shell comprises a top surface ( 11 ), a pair of lateral surfaces ( 13, 14 ), respectively, connecting with the top surface, and a rear surface ( 15 ), respectively, bent from the lateral surfaces. The two-part rear surface comprises a base plate ( 151 ) and a shielded plate ( 152 ) extending rearwardly from the base plate. Each contact comprises a tail portion ( 32 ) exposed out of the insulative housing. The shielded plate is above and covers the tail portions of the contacts.