Valve officially released their lineup of Steam branded hardware today. This includes the Steam Controller (review incoming), the Steam Link (review incoming), and a lineup of Steam Machines from various manufacturers.
Valve today announces the official launch of its line of Steam Hardware devices in the US, Canada, UK, and Europe.

A leading platform for PC, Mac, and Linux games, Steam offers more than 6,000 titles to millions of gamers around the world. The Steam Controller, Steam Link, and Steam Machines are a collection of hardware devices designed to expand the Steam gaming experience into any room in the home.

Earlier this fall, Valve announced dedicated Steam Sections in most GameStop, GAME UK, and EB Games stores. The sections will feature the Steam Hardware devicesas well as a variety of Steam prepaid cards. In addition, Steam Machines will be available from their respective PC manufacturers, and the Steam Controller and Link are available via Amazon and directly from Steam.

About the Steam Hardware devices:
Steam ControllerSteam LinkSteam Machines -- Available from Alienware, Zotac, Cyberpower, and other manufacturers, Steam Machines can serve as a stand-alone device for enjoying the Steam gaming experience in one box, with more than 1,500 titles available for native play. In addition, Steam Machines have the ability to broadcast and receive In Home Streaming, allowing you to stream your games to a Steam Link, or receive a stream from another Steam Machine or PC. Steam Machines will vary in price, offering a range of hard drive sizes, graphics performance, and more. Starting at $449.99.

You can find out more on each of these devices at the Steam Hardware page. We do have reviews incoming for the Steam Link and the Steam Controller. My initial impressions are largely positive but there are a few catches with both devices. For some preliminary content to hold you over, check out the Steam Controller general overview video I put up the other week.