I use the AVerMedia Game Capture HD 2 to capture HDMI from Xbox One and PS4 and I've been very happy with it. Unlike a lot of such devices this one is stand-al

I use the AVerMedia Game Capture HD 2 to capture HDMI from Xbox One and PS4 and I've been very happy with it. Unlike a lot of such devices this one is stand-alone, I don't plug it into a PC, I just use it as an HDMI pass-through, plug a USB3 external hard-drive into it (it also has a bay for internal 2.5 SATA HDD, but I use an external drive so I can just pull that out of the capture device, plug it into a computer to get the captured mp4 files over quickly and easily for editing). The stand-aloneness of this device is pretty great because it means you don't need to muck around with drivers on your other computers, though YMMV depending upon specific usage, a lot of people like to do live streams directly to places like twitch and this device isn't really well suited for that sort of thing. Also, this device (AFAIK) doesn't do HDCP pass through. Game systems generally don't enable HDCP during gaming (but do during, say, blu-ray playback). So that certainly makes it less flexible than solutions which will allow HDCP capture.