A connector is provided that may include first and second housings. The first housing may include a first body and a lock arm. The first body may include a first receptacle. The lock arm may be pivotably coupled to the first body. The second housing may include a second body having a second receptacle and a support member. The first and second housings may be engageable with each other in a first position and a second position and movable relative to each other from the first position to the second position. The lock arm may be deflectable relative to the support member when the first and second housings are in the first position. The support member may restrict deflection of the lock arm when the first and second housings are in the second position.