This refurbished MEI coin changer has the ability to accept quarters and to dispense quarters and dollar coins. If you wish to dispense dollar coins, you will manually need to fill the casette when you service the machine. This will be a good option if you are accepting higher denominations of cash.  Three of the four coin tubes are utilized in this application. The connector on this changer is for a machine that uses the MDB interface = small six position plug arranged 2 x 3.