The Royal MB30 USB Cash Drawer features 5 bill slots that are designed for US, Canadian, and Mexican currency. Its removable coin tray includes 8 adjustable slots to accommodate different coin sizes. Connect the cash drawer easily to your POS register or computer via USB or RJ11 interface. It comes with a secure 3-position key lock: closed, automatic open, and manual open. The drawer will open upon receiving an electronic pulse from the POS printer, ensuring compatibility with various brands.