PSA: If you didn't get your hands on a Steam Link device, you can load the app on an Amazon Fire Stick TV and connect a Bluetooth controller : r/gaming
Amazon Launches Fire TV Stick 4K: 4Kp60, Dolby Vision, Dolby Atmos, HDR10+
Steam Link on Amazon Fire Stick #firetv #firestick - YouTube
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TUT] Steam Link mit Amazon FireTV [4K | DE] - video Dailymotion
Amazon Fire TV Stick 4K supports external USB drives and USB peripherals via an OTG cable | AFTVnews