11 support the board in a vertical position although it will be appreciated that the simm connector may be designed so that the boards are placed at an angle rather than vertically also daughter boards other than simms need not include a hole designed to accommodate projection 12 and therefore projection 12 is optional the preferred simm connector may include a conventional orientating projection or key not shown on one side of main body portion 1 because the orientation of the daughter board is crucial in cases where circuits on the board are not completely symmetric a cut out is provided on the board which fits over the key when the board is properly oriented and prevents insertion of the board when it is not properly oriented as noted previously all of the above elements are conventionally provided in the form of a single molded plastic member for ease of manufacture although it is possible that the alignment posts key and other elements may be made of a different material and still fall within the scope of the invention as described below in order to latch the daughter board in position against surface 13 a latching projection 15 supported by and molded into plastic latch member 17 is provided the board is latched between surface 16 of latching projection 15 and surface 13 of the alignment post 11.