Share the freedom of 3g / 4g! the wireless router n 3g / 4g tl-mr3420 allows you to share your 3g / 4g access, for example, a train, camping, hotel and virtually anywhere there is 3g / 4g coverage. your access point wi-fi is instantly activated when you connect a usb modem umts / hspa / evdo to the router. the characteristics of the tl-mr3420 provide high-speed 4g is compatible with 3g modems, allowing users to share mobile broadband 3g / 4g with family and friends via a wired or wireless. compatibility is the most important when choosing a 3g / 4g router factor. tp-link has ensured that its 3g / 4g routers support access providers from countries where they are sold to achieve the highest level of compatibility between them and modem models available to users. we of computers around the world who are continually testing our routers with new modems appear on the market. thus, users know they can use their router without any problem in areas where they live and work.