Digital cable Adapter
The Apple VGA Adapter is designed to connect your iPad to a monitor, TV or projector using a VGA cable. This is an older type of connection but still common on many projectors sold today. A VGA connection can only carry a video signal. Another limitation of VGA is its lack of support for HDCP - 'High Definition Copy Protection' - which prevents the playback of some movies (for example movies rented or purchased from the iTunes store) on an external display.
The Apple Digital AV Adapter allows you to connect you iPad to a monitor, TV, projector or home theatre system using an HDMI cable. HMDI carries both a video and audio signal, and supports HDCP, making it ideal for playback of rented or purchased movies from the iTunes store. This adapter also includes a 30-pin dock connector to which you can connect a USB charging cable, allowing you to charge your iPad at the same time as using the adapter.