Convert your mini DisplayPort video output to VGA for use with Eyefinity setups using this Mini DisplayPort to VGA Active Adapter from Monoprice!
Unlike passive adapters, which cannot take advantage of all the features offered by each video format, an active adapter translates the signals between the graphics card and the monitor into a form that can be fully understood by each device. This ensures that the DisplayPort circuitry in the graphics card can keep the signals to each monitor in proper synchronization in an Eyefinity setup.
This adapter is fully compatible with the DisplayPort 1.2 standard. Note that this adapter does not support audio.