Here is a kit designed to help you create a powerful network at your place. The TRENDnet Powerline 1200 AV2 Adapter Kit provides high-speed networking over existing electrical lines. It relies MIMO with Beam forming technology to offer better performance. To get started, just plug in the adapters, and you are set. It covers homes up to 5,000 sq. ft.
Thanks to these adapters, you can connect more devices and stream 4k video. The adapters ship pre-encrypted. Sets you back under $140.