Patent ID: 6926538

Claim:
An electrical connector assembly comprising: a first connector comprising a first insulative housing defining a plurality of first passageways; a plurality of first contacts received in the corresponding first passageways; a second connector comprising a second insulative housing defining a plurality of second passageways, each second passageway defining a guiding channel and a receiving channel communicating with the receiving channel, the guiding channel being bounded by a restricting wall; a plurality of second contacts received in the corresponding second passageways, each second contact having a second contacting portion; wherein, the second contact is received in the receiving channel and the second contacting portion partially protrudes into the guiding channel, when the first connector and the second connector are mated, the first contact is inserted into the guiding channel and engages and is restricted by the restricting wall and the second contacting portion protruding into the guiding channel; wherein the first insulative housing has a plurality of fastening recesses along a longitudinal direction thereof and a plurality of restricting recesses along a transverse direction thereof; wherein the second insulative housing has a plurality of fastening blocks corresponding to the fastening recesses and a plurality of restricting blocks corresponding to the restricting recesses; wherein the restricting recesses include a first restricting recess and a second restricting recess, the first restricting recess being wider than the second restricting recess along a transverse direction of the first housing; wherein the fastening blocks include a first fastening block and a second fastening block for mating in the first restricting recess and the second restricting recess.