The DisplayPort-to-Mini-DisplayPort Adapter from Gefen is a Plug-n-Play adapter that simplifies a connection between a DisplayPort source and a mini-DisplayPort receiver. Mini-DisplayPort is a miniaturized version of DisplayPort and is widely used on all new Macintosh computers and Apple Cinema Displays (also known as Thunderbolt ports).
The simple design of the DisplayPort interface provides ease of use and lower costs since one cable can be used to carry both analog and digital audio/video. The DisplayPort-to-Mini-DisplayPort Adapter is designed to connect a workstation using DisplayPort to an Apple Cinema Display.
The DisplayPort-to-Mini-DisplayPort Adapter supports resolutions up to 2560x1600. Also, the included EDID button can switch to 2560x1440, which is the native resolution of Apple 27" iMacs and Apple 27" LED Cinema Displays
Since both DisplayPort and mini-DisplayPort connector handle both video and audio signals in the same cable(just like their HDMI counterpart), there's no need for a separate audio connector
No External Power Required
The DisplayPort-to-Mini-DisplayPort Adapter does not require a separate power source