MX240 chassis with installed enhanced backplane/midplane. This is just plain/empty chassis and does not include the CRAFT panel, fan tray or power supplies. Enhanced backplane/midplane supports Enhanced MX Switch Control Board (SCBE2-MX and SCBE3-MX), which provide improved fabric performance for high-capacity line cards (MPC2/3 NG, MPC4E, MPC5E, MPC6E, MPC7E, MPC8E, MPC9E and MPC10E)