Before purchasing this Powerline Networking Kit for our family XBox system, I tried a wireless N adapter and I already had a signal expander on my network. Downloads for updates and apps took 20 to 30 minutes and occasionally dropped the connection and had to retry downloading. That was frustrating. I researched Best Buys web site for other options other than a wired ethernet connection to our router which is located away from our entertainment area, and came to this Powerline Networking Kit. I was sceptical about it at first because it works through your homes electrical outlets. I purchased this Powerline Networking Kit. Set up was easy and downloads are 1 to 3 minutes and no dropped connection.