Like its Cinema Display predecessor, the resolution of the 27-inch model is 2560 × 1440 pixels, and follows the 16:9 aspect ratio. It is made with aluminium and glass, having a similar appearance to the current ranges of iMac, MacBook Pro and unibody MacBook designs. The display features a built-in HD FaceTime camera, microphone, and dual speaker system. A MagSafe cable runs from the back of the display for charging notebooks, as does a Thunderbolt cable. There is also a separate Thunderbolt port, a FireWire 800 port, 3 USB 2.0 ports, and a gigabit Ethernet port. As the Cinema Display before it, it uses LED backlighting, though it now features a Thunderbolt port cable (an upgrade from the standard Mini DisplayPort before it) for video input. This display is only officially compatible with Macs that have the Thunderbolt connector. A Mini Display Port to USB-C adapter can be used in order to use this display with newer USB-C Macs. The display supports daisy chaining of two Thunderbolt Displays from a MacBook Pro.
For a full list of technical specifications, see link: