TP-Links TL-MR3420 3G/3.75G Wireless N Router means that you can quickly set up a 300 Mbps wireless network on-the go & share a 3G/3.75G mobile connection. By connecting a UMTS/HSPA/EVDO USB (Universal Serial Bus) card to the router, a Wi-Fi hotspot is instantly established allowing users to share an Internet connection anywhere 3G/3.75G coverage is available. So whether youre on the train, camping, or at a construction site, youll have a reliable wireless connection to accommodate your networking needs.