Original Apple, fully tested mini display port (or Thunderbolt 1/2) to VGA monitor adapter. Supports display resolutions up to 1920 x 1200. To achieve resolutions greater than 1600 x 1200, displays with high refresh rates may require you to lower the refresh rate. Because VGA is analogue instead of digital, HDCP-encrypted content may not play back, or may play back at a lower resolution.