A connector seat of a computer bus has four side walls. Each of the four side walls has two adjacent side walls. The connector seat is formed with at least two openings each located between one of the four side walls and each of its two adjacent side walls, so that the one side wall is capable of being oscillated outward. Thus, when the user swings or oscillate the bus connector so as to remove the bus connector from the socket of the connector seat, at least one of the side walls of the connector seat may be oscillated with the bus connector, and will not be broken due to the stress or pressure produced when the user swings or oscillates the bus connector.