Kanex iAdapt 51

iAdapt 51, Mini DisplayPort to HDMI, 0.6m, white <b>USB-powered</b>
Don't bother with cumbersome power supplies that take up space. The iAdapt 51 includes a USB connector for power. It's even equipped with a red LED light to let you know it's on and working. Plug and play is easy!
<b>Mini DisplayPort meets HDMI</b>
Connect your Mac with Mini DisplayPort to any HDMI HDTV or projector. Now you can break free from your single display and view your content on a high definition display.
<b>5.1 Surround Sound Audio</b>
The iAdapt 51 provides digital surround sound for well-equipped Mac models released as early as 2008. Listen to your movies and music in surround sound. Supports uncompressed 5.1-channel audio such as LPCM and compressed 5.1 channel audio such as DTS Digital or Dolby Digital.
<b>Automatic EDID and HDCP compliant</b>
This cable has an auto–EDID feature built-in that adapts to maximum resolution depending on users display. If a user has a 720p HDTV, it will read the EDID and adjust Mini DisplayPort output automatically and vice versa for 1080i/1080p displays.