Lexmark OEM Lexmark T640 USB Board Assembly;Compatibility:Lexmark T640,Lexmark T640DN,Lexmark T640DTN,Lexmark T640N,Lexmark T640RN,Lexmark T640TN;Lexmark T640 USB Board Assembly;Lexmark, LEX, 40X0151, Lexmark T640 USB Board Assembly, Board;Brand: Lexmark