In order to fully support both audio and video transmission, the Mini DisplayPort to HDMI Adapter should support the VESA-1.1a DisplayPort Standard. Step 2: Finding the Right Mini DisplayPort to HDMI Adapter Skip step 2, in other words, and continue with step 3. Just connect your Macbook and your HDMI cable with a TV. These Macbook models released in 2012 and later already have a built-in HDMI port. No additional adapter is necessary if you are connecting directly to the HDMI port on these specific models. Both interfaces are 100% compatible, and you can use the same Mini DisplayPort adapter for a Thunderbolt connection as well). (Note: Do you have a Macbook with Thunderbolt instead of a Mini DisplayPort? Don't worry it makes no difference for this tutorial.
Unfortunately, any older models can send video data only over the DisplayPort connection. The following devices and versions are compatible and capable of sending both audio and video signals over the Mini DisplayPort: