The edimax ew 7478ac is an 11ac high speed smart wi fi extender with built in power adapter and a compact design which plugs directly into an electrical outlet double the signal coverage of your wi fi network for better wi fi quality around your home with smart iq setup installation is quick and easy and the ew 7478ac features three operating modes wi fi extender access point or wi fi bridge use whichever mode you need for your network additionally the extender complies with ieee 80211a