I first thought it connect to my NAS (and incidentally my printer) to speed up access. It was a good idea (throughput greater that gave me my freebox), but I quickly realized that the best way to exploit it was to make the main router in my network. This is the case now my freebox is connected to the router, as my NAS and my printer. My PC, my laptop and my Chromecast key are connected via Wi-Fi I can now transfer a movie recorded on my freebox to my PC almost 4 times faster. - All without interrupting my téléchargmenents or Netflix. I love!