AK5-USB has been available

If you computer does not have an serial port or you need extra serial port to convert your PC into coin operated PC then you can use AK5-USB,
It need install extra driver and latest software 3.7.5
http://www.weavefuture.com/usb-rs232-driver.htm

It need install extra driver and latest software 3.7.5
http://www.weavefuture.com/usb-rs232-driver.htm