16:9 widescreen aspect ratio. Ambient light sensor automatically sets brightness and saves energy. Built-in MagSafe power cable to charge a compatible Mac computer, access the monitor ports through the built-in Thunderbolt cable. Built-in Facetime HD camera with microphone, stereo speakers with subwoofer. Connections: Thunderbolt Port, Gigabit Ethernet, FireWire 800, 3x USB 2.0 ports. REQUIRES a Thunderbolt-enabled Mac computer.