Feature: 1. Connect to Computer: The cash drawer is directly connected to the computer eliminating the need for a printer. 2. Power Saving: Take power directly from the computer s USB port saving additional power adapters. 3. Plug and Play: Support hot plug hot dial plug and play no need to set COM parameters. 4. No Cash Drawer Instruction: Just write any data to the virtual serial port to open the cash drawer. 5. Multi Connection: The cash drawer can be operated with a standard RS232 serial port. At the same time a computer can be connected to multiple drive boxes. Specification: Item Type: Cash Drawer Driver Trigger Material: ABS Purpose: Cash Drawer Driver Interface: RS323 USB Package List: 1 x Drive 1 x Connection Line How to use: Just insert the RJ11 interface of the cash drawer into the port of the driver box connect the driver box and the cash register or computer with the provided cable install the driver and set it in the cash register software to use.