Comparing to traditional small desktop cash counting machines (such as N900), this type of machine looks bulky, and its functions are almost the same. But when the banknotes have been tied into 100 sheets per bundle with paper tape, only this machine can re-check whether each bundle of banknotes is actually 100 sheets or not, before being sent to the safe, without tearing off the paper tape. This machine uses vacuum suction to count the quantity of bills. The speed is very fast, reaching 1500 sheets per minute, and there is currently no substitute.