The RE6300 and RE7000 are two of the most popular Linksys variants. Both of them are little plug-in extenders. They are also a bit complicated to set up the first time, but not too hard. It's just that the package makes it seem like they are plug-and-play. https://graph.org/Linksys-Extender-Setup-The-Complete-RE6300--RE7000-Guide-08-14