Belkin Mini Display Port to 2X VGA + 3.5 mm Splitter Dongle (F2CD061), Not Compatible with Microsoft Surface Pro 3 Tablets & Pro 3 Docks, MacBook Air 10.8 or Newer Versions Extends a Mini Display Port equipped desktop/laptop/MacBook to 2 VGA display monitors with 3.5mm audio NOTE: This item is not compatible with the following devices: Microsoft Surface Pro 3 tablets & Pro 3 docks, MacBook Air 10.8 or newer versions Supports Video Resolutions up to 1920x1200,No Drivers needed, plug & play simplicity No external power adapter needed,Less costs than a docking station Works on monitors 22 inches or smaller