This kit includes the 600mW USB adapter and all required cables and drivers for XP, Vista and 7 now also supports MAC. .
This is the same kit that many RV parks and Truck stops sell for much more.
A 7dBi range extender antenna with magnetic mount base is also included. Just placing the 7dBi mag mount antenna outside on your vehicle.
This is a plug and play system install the driver and plug in the adapter and you will be on the Internet.