A circuit board assembly comprises a first circuit board and a second circuit board. A connector socket is mounted on the first circuit board, and a connector plug is mounted on the second circuit board. A handle assembly is attached to either the first circuit board or the second circuit board. The handle assembly comprises a base member attached to either the first circuit board or the second circuit board and first and second rotating members pivotably attached to opposite ends of the base member. When the first rotating member and the second rotating member are rotated away from the base member, the connector plug is disengaged from the connector socket. When the first rotating member and the second rotating member are rotated towards the base member, the connector plug is inserted into the connector socket.