TP-Link TL-MR3420 enables quick creation of a wireless/wired network allowing access to the Internet via a 3G connection or traditional DSL line. The device allows wireless transmission speed up to 300 Mbps (802.11n) and LAN connectivity (Ethernet) up to 100 Mbps. Communication with the Internet via a 3G network is done through the USB interface, which has to be connected to the suitable 3G modem