Valve Seems To Discontinue Steam Link, Almost Sold Out Worldwide
You'll have to link your Steams some other way.
Valve's Steam Link device is almost sold out, and the company has signaled it doesn't plan to restock. It's already completely gone in Europe, and the company says it's almost sold out in the US as well.
In a statement, Valve said it "intends to continue supporting the existing Steam Link hardware as well as distribution of the software versions of Steam Link." That statement could signal a new version of the Steam Link hardware coming, or simply letting existing users know that they'll keep receiving support. The name has also been applied to a mobile app (available on non-Apple devices) and it has been integrated into TVs. The statement points out that support for those digital applications will continue as well.
The Steam Link allowed you to stream games from your gaming PC onto any display. Games could be streamed at 1080p and 60 FPS, and the device supported the Steam controller as well as third-party ones like the Xbox One, as long as you have the proper attachments for wireless controllers. The Steam Link went on sale last year for $20, and then received an even deeper temporary discount later in the year. Valve may have been attempting to clear some stock.
Steam Link was one budget option for getting your PC games onto your living room display, as long as you had a powerful PC to run the games natively. Valve also produced Steam Machines for the same purpose, to make PC gaming a more console-like plug-and-play experience.