Can the card for punching attendance on the unit be duplicated? I think it is possible to duplicate, because many units are big test often duplicates, so I am ready to unit punching attendance card can be duplicated. Because this thing can only go to copy to save more. Some, so to not no, can not copy did not every have to go to buy, so I think that the time card unit on the card, playing the time card card can be duplicated, and duplicated than the original card also. Do not distinguish between up and down, so the unit close to the card can be copied.