Yeah, I can conform that the Elgato does indeed work for doing this. (and is definitely one of the best ones out there for streaming videogames to another screen or computer). I have one of these at home which I got for my daughter for the purpose of creating YouTube videos. Tends not to lag when just streaming the videogame on its own.On this version of the device, the lag only happens if you're trying to do the whole YouTube style recording where it simultaneously has a face-cam over the top of it. (as the two audio and video streams simultaneously it becomes slightly too much to handle in real time, and pushes it beyond the limits of the Elgato). But for your purpose, it shouldn't have this problem, as you won't be putting a face cam over it anyway. When just streaming just the video-game on its own, there is no lag in either the video or audio, providing you're using the right settings. (ie: if you get lag on say the 60 frames per second setting, lowering it to 30 frames per second often solves this problem, and you get no lag at all)
