Monoprice Mini DisplayPort to DVI Active Adapter (109425) Convert your mini DisplayPort video output to DVI for use with Eyefinity setups using this Mini DisplayPort to DVI Active Adapter from Monoprice. 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. Take advantage of all the features offered by each video format with Active Adapters. Convert your mini Display Port video output This ensures that the Display Port 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 Display Port 1 Connect your mini DisplayPort equipped MacBook, laptop, or PC to a DVI display using this Mini DisplayPort to DVI Adapter from Monoprice. This is a passive adapter, which requires no additional power. It converts the mini DisplayPort video signal to a DVI video signal. Note that this is not bidirectional and therefore will NOT convert DVI video to mini DisplayPort. Also note that this does not support audio. Note: This is a passive adapter and is therefore NOT suitable for AMD Eyefinity installations. An active adapter, such as PID 5135, is required for Eyefinity setups."