In this setup, the device acting as the Steam Link (the hardware unit or the mobile device in software form) enables a game controller connected to it to be used to control the game over the connection to the home computer. Steam Link, whether in hardware or software form, supports the streaming of content from a personal computer running Steam to the video device (a connected television or monitor for the hardware unit, the mobile device's screen for the software version). Valve discontinued the Steam Link hardware device in November 2018, in favor of supporting its software-based Steam Link application for mobile devices and smart televisions, as well as providing Steam Link as a software package for the Raspberry Pi microcomputer.

Steam Link was originally released as a hardware device alongside the debut of Steam Machines in November 2015.

Steam Link is a hardware and software solution made by Valve Corporation for streaming Steam content from a personal computer or Steam Machine wirelessly to a mobile device or other monitor.

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