This is a cost effective solution for adapting your new Mini-DisplayPort equipped laptop to your current display--HDTV, projecter, etc.--with HDMI input.
Mini-DisplayPort is a miniaturized version of DisplayPort, the newest digital display interface developed by the Video Electronics Standards Association (VESA). Most newer Macbook series laptops come equipped with the Mini DisplayPort interface for external video displays. Check your laptop to make sure it has the Mini DisplayPort connection.
This five-inch adapter is for use with a standard HDMI cable (male to male). Connect the cable to your machine using the adapter, then connect to an external monitor or other display device with HDMI input jacks, and you're all set.
This adapter will support audio only if your source device allows audio output through the Mini DisplayPorts interface. If you're not sure, please check with the manufacturer or website, to confirm if your device allows audio out through the Mini-DP interface.