Kanex iAdapt Mini DisplayPort/Thunderbolt to DVI Adapter + USB for Apple Cinema Display 30-Inch with 2560x1600 maximum resolution Extend your Mini DisplayPort equipped Apple MacBook, MacBook Air, MacBook Pro, Mac Mini, or Mac Pro to 30" monitor with DVI-D connector Display content in dual screen or mirror mode with resolutions up to 2560x1600 Great for use during professional applications such as post production editing and viewing of iMovies and photos where larger desktop space is necessary Support Mini DisplayPort input Support Dual-Link DVI-D or Single-Link DVI-D output