The TP-Link TL-WR702N nano router is a small 2.4Ghz single port wireless router that can be powered either via the included AC adapter or via USB. TP-Link claim it to be capable of connecting wireless clients at 150Mbit/s, however since this is only a single stream device it would require a 40mhz channel width (that’s 2 “normal” WI-FI channels bonded together) in order to do so. On a normal 20Mhz channel you will actually only get 65Mbit/s.
What I believe is FAR more useful is the TL-WR702N’s “Client mode” capability. This function allows you to configure the TL-WR702N to connect to an existing wireless network and then provide connectivity to whatever is attached to the Ethernet port. This is useful for things like internet enabled TV’s or STB’s that often lack wireless capabilities but have a wired Ethernet port for various IPTV/Video on Demand services.