Both modems come with two days inclusive Rover use, so you can test the products before deciding whether or not you want to return them through the fourteen day “no questions asked” return policy. … The Rover Stick(TM) is a personal 4G USB modem that connects any notebook, laptop or desktop to the Rover 4G Service. The Rover Stick is compatible with MacBook(R) and MacBook(R) Pro laptops using Mac OS X, as well as netbooks and notebooks running Windows(R) XP, …