The MDP2VGAMM15B active Mini DisplayPort to VGA converter cable lets you connect your Mini DisplayPort-equipped desktop or laptop directly to a VGA monitor or projector at a longer distance than a standard-length cable would support, while saving the expense of additional adapters.
The adapter cable is compatible with Intel® Thunderbolt, when connected directly to a supporting DisplayPort over Thunderbolt I/O port. Plus, because the converter cable supports video resolutions up to 1920x1200 you can convert a DisplayPort video source to VGA without sacrificing video quality.