Connect your Mac or PC to a VGA display with discrete 3.5mm audio output - This unique Mini DisplayPort to VGA adapter is equipped with a built-in audio port which lets you connect MDP equipped devices, such as a Microsoft Surface Pro 3 tablet or MacBook Air laptop, to a VGA display or projector with audio. Because most boardrooms are set up differently, the length of cables available in each room vary. Not all laptops have the MiniDisplayPort (MDP) and audio ports positionedon the same side, which can become awkward when you're trying to share your presentations. It can also mean that some ports may be just out of reach during a meeting. This convenient adapter positions your audio and video ports on the same side of your laptop, to ensure that all of the ports you need are accessible when you need them. If the audio port on your mobile device is damaged or blocked by other connections, this convenient adapter guarantees that you'll always have all of the ports you need for every presentation. By connecting audio to your laptop through the adapter, you can be prepared for any situation. In order to use the audio function of the adapter you need to power the adapter through a USB port on your laptop, or through a charge port on a USB grommet. The adapter can also be used for connecting your computer to your monitor and speakers. The adapter and connected cables can be placed nicely at the back of your monitor to create a tidy setup. This adapter is extremely portable with a lightweight design. It's the perfect accessory to carry with your mobile devices, fitting easily into your laptop bag or carrying case -- ideal for BYOD (Bring Your Own Device) applications at the office. The adapter is compatible with DP enabled Thunderbolt ports, and supports resolutions up to 1920x1200. The MDP2VGAA is backed by a 2-year StarTech.com warranty and free lifetime technical support.