An electrical connector 5 comprise an upper housing 52 defining a number of contact passageways 521, a lower housing 54 defining a number of tail passageways 541 in communicate with the contact passageways 521, a number of contacts 51 extending along the contact passageways 521 and the tail passageways 541, at least one intermediate member 53 defining a plurality of opening 531 for receiving the contacts 51 therein arranged between the upper housing 52 and the lower housing 54.