If you have a thermal ticket printer connected to your computer's serial port, and you would like to add other serial (RS-232) devices, such as a receipt printer, cash drawer, debit card pin pad, or any other serial devices supported by Box Office Xpress, then you will need a serial adapter.
We have tested the above 4 port unit from Quatech with a variety of serial devices and have found it to work flawlessly. This unit plugs into a USB port and adds the appropriate number of serial ports to your computer.
SSU-100 1 port (pictured)
DSU-100 2 port
QSU-100 4 port (pictured)
ESU-100 8 port
For more information on Quatech, including where you can purchase this device, please visit their website ... www.quatech.com or follow the direct link to this product.