Sierra Wireless has launched the worlds first 42 Mbps download speed 4G usb modem before- Sierra Wireless Aircard 312U, I think many people have deep impression about it, due to the outstanding features and quite nice appearance, when it comes out, it quickly attracts peoples eyes. With 42 Mbps Aircard 312U, people working at client locations, at airports, or on their home can access the internet to enjoy all kinds of applications, games and others with high speeds, it could be really reserved for office environments, as well as the entertainment areas. That is to say, it may improve network…