Steam Frame pricing and release date revealed by Valve - it's a lottery again
(www.gamingonlinux.com)
I didn't know this existed, but a quick Google found nofio, but looks pretty pricy and doesn't have great reviews... https://www.reddit.com/r/ValveIndex/comments/1b9hc7i/im_a_backer_for_the_wireless_nofio_adapter_many/