The SaHa E230 is a motor car without pantograph for the JR E231 train set. Despite the model being basically identical to the MoHa E230, this carriage is meant to have a motor; however currently only the 'locomotive' can make sound in advtrains, so only the control car “KuHa E231” wagons make sound.
Note the texture on this wagon shows “E230” unlike the rest of the set which are E231. This distinguishes this wagon from the MoHa E231 which has a pantograph.