Every Mac with Mini DisplayPort lets you connect an external monitor or projector using an adapter. You can use an external monitor as your main desktop, expand your desk, or work in mirrored mode with a projector to see exactly what your audience is watching.
Use the Mini DisplayPort to Dual-Link DVI Adapter to connect your Mac to a 30-inch display that includes a DVI connector, such as the 30-inch Apple Cinema Display HD, and enjoy the latest high-resolution widescreen display. 2560 by 1600 pixels.
Mac OS X v.10.5.6 or later
Compatible with Mac computers with Mini DisplayPort and Thunderbolt
Mini DisplayPort ports