SoundBridge is a hardware device from Roku, Inc. designed to play internet radio or digital audio streamed across a home network, over either Wi-Fi or ethernet. SoundBridge devices directly browsed the Radio Roku guide. As of 2008, all Roku SoundBridge products were discontinued; Roku focused on IPTV. As of January 2012, the SoundBridge was no longer available from Roku. As of May 2018, internet radio functionality was no longer supported by Roku; they shut down their Radio Roku server that provided searching, saving, and accessing "Favorite" stations. However, the Roku SoundBridge can still access radio streams stored in its 18 URL presets.
The music is also made available by a streaming server, usually a PC running media software. The SoundBridge had a high-resolution vacuum fluorescent display and was compatible with various media servers, namely servers using Apple's Digital Audio Access Protocol; popular servers are iTunes, mt-daapd, Windows Media Connect, Rhapsody, SlimServer, and UPnP (Universal Plug and Play) compatible servers such as TwonkyVision. Some of these servers run not only on PCs but also on NAS devices like the Linksys NSLU2, so a SoundBridge could be operated without a PC.