Solwise HomePlug Ethernet PL-85PE
 

There are two key methods employed when trying to network a household –
wireless or wired. Wireless can be problematic, has limited speed,
reliability and security issues. Wired is faster, reliable but more time
consuming to setup as it involves cabling. Personally, I think the
technologies go hand in hand well – they aren't by any means mutually
exclusive. I run a wired network at home as I do quite a few file
transfers, and then I have wireless access which can come in handy for
working from unusual places.