Tripp Lite's 50ft HDMI - HDMI ( High Definition Multimedia Interface ) cable allows interconnection between digital display devices, such as DTV's ( Digital Television ), Plasma displays, LCD TV's, and projectors, to Digital source devices, such as Digital Set-Top boxes, DVD/DVD-R players, and AV receivers. HDMI assures that the best video signal is always sent from source (HDTV signal, DVD Player .) to the display (Projection Television or Plasma). It does this by allowing uncompressed video and multi-channel audio data to be input to the display device through one single cable. The need for multiple analog connections for high-resolution audio and video are eliminated. Without a HDMI connection, one would need 3 video connections for high definition video and 6 audio connections for high-resolution audio. An HDMI connection allows input at high rates of speed, up to 5 Gbps. This leaves a lot of spare capacity for future applications; for example, a current uncompressed HD movie only requires 2.2 Gbps for both video and multi-channel audio. Tripp Lite Lifetime Warranty. " Must be used with Tripp Lite B122-000 Signal Booster"