The ThumbDV™ is for use with computers having a USB port.  It is an inexpensive way for you to get on D-STAR.

ThumbDV™ Resource Page can be found at:

http://nwdigitalradio.com/thumbdv-and-dv3000-resource-page/

Configure Win-DV to work with the ThumbDV™:

http://nwdigitalradio.com/windv-configuration/

When you get your ThumbDV or other dongle, you need to register on the D-STAR system.  Here’s where you do it:

http://www.dstargateway.org/D-Star_Registration.html