Tripp Lite P137-06N-HDV Keyspan Mini DisplayPort to VGA/DVI/HDMI All-in-One Adapter Video Converter, Black, 6 in.

Connect a VGA, DVI or HDMI monitor to a Mini DisplayPort on your laptop or tablet
All-in-One converter offers maximum flexibility to connect to any available monitor
Portable design with built-in cable is perfect for travel and stowing in your laptop bag
Supports computer video resolutions up to 1920 x 1200 or HD video resolutions up to 1920 x 1080 (1080p)
Supports up to 36-bit Deep Color (12 bits per channel)
7.1 Audio Surround Sound only supported by HDMI
Compatible with Thunderbolt 1 and 2 ports on Mac computers such as the MacBook Pro and MacBook Air
Passive adapter requires the connected computer to have a DP++ ( DisplayPort ++ ) port