The Mini DisplayPort to HDMI Adapter offers true output flexibility. You can output video from all your Mini DisplayPort equipped Macs, PCs or docking stations via one cable to a high definition monitor or TV with up to 4k @ 30Hz. You can output BOTH digital audio* and video for a true one cable solution for all your A/V needs.With this adapter, you can use an external display as your main workspace with up to 4K @ 30Hz or extend your desktop, or you can work in mirrored mode with a projector so you can view what your audience sees.Use the DisplayPort to HDMI Adapter to connect a high definition monitor or television, that includes a HDMI connector.Review the documentation or check with the manufacturer of your monitor or TV to make sure you're choosing the right adapter.