This is the profile page of a channel. It typically displays information describing the channel. If the channel represents a person in a social network, for example, then the profile might provide contact information and other personal details about the person. Channels can have multiple profiles, where the displayed profile depends on the observer.
The channel content tabs are links to other content published by the channel. The About tab links to the channel profile. The Photos tab links to the channel photo galleries. The Files tab links to the general shared files published by the channel.