Huawei E3372 is a high-speed 4G dongle that provides you with a secure and reliable internet connection. All you need to do is insert a data sim card of your choice, as the dongle is UNLOCKED, then it is ready to use. The best feature about the 4G dongle is that it has a fast download speed reaching up to 150 Mbps (megabit Per Second) so it is not just your average dongle. It is fast and extremely easy to operate; so mobile users can experience the best features of the E3372. A perfect companion if you travel to work by train, just plug in and enjoy your instant connection to the internet whenever and wherever you are.