While I am not a Sling Media employee or representative, I think it is wise under any circumstances to put a router between your modem and your Slingbox. Plus, you will want to have a computer connected to the same local area network when you set up your slingbox's operation -- a router will simplify this process. Having a 50 MBPS connection at the location of your SB is probably "overkill" for streaming the media, based on the current steaming data sizes and the electronics of the Slingbox. But do remember that your ACTUAL streaming speeds will be determined by the SLOWEST link in the system. So, for example, if you are watching the streaming signal from another country and the download speed of your internet connection is, say, 2 MBPS, then your streaming speeds will be no faster than 2 MBPS, and probably substantially slower due to overhead. And there could well be "interconnection linkages" in the Internet Land between your SB and your viewing computer that you will have no control over, and hence could really be the determining factors for your streaming speeds.