But for those with existing hardware devices, Valve will continue to support them. In a post on Steam this week – and somewhat out of the blue, the company announced that its supply of Steam Link hardware has sold out – and by the looks of it, it won't be making any more. Instead it's encouraging people to sign up to a beta trial of its new Android mobile app. In a quiet farewell, Valve announced that it's no longer selling the Steam Link hardware. I guess as it is 4 times the resolution perhaps it takes close to 4 times wifi data also.The Steam Link was something of a staple hardware device when it came to wireless HDMI game streaming, but it seems the future is mobile – at least that's what Valve thinks. On top of that my 100 mbit network speed means it is not always playable depending on what else is happening on the network. So this whole process works but it is a bit annoying having to enable the DSR resolution each time before playing on my monitor downstairs. Turn on the overlay data so you can see what it captures etc when in Steam I see 1920*1080 but when I launch RD2 I now see 4K being captured. You need to set the resolution to be 4k in the steam link app settings. Then on your steam link app which cant be the original hardware but perhaps an Apple 4K box or a Samsun 4K TV app.

Then on my PC 1080p monitor everything is mega small and blurry and looks like crap but you can then load your game (RD2 in my case and choose 4k at which point it moans about reducing graphic settings) once the game loads choose 4k resolution in-game. On my Nvidia card settings under 3D settings I enabled DSR * 4, then in the resolution settings area you see 2 new options and you can effectively choose 4K.

Steam link stream 4k