Kanex iAdapt Mini DisplayPort/Thunderbolt to DVI Adapter + USB for Apple Cinema Display 30-Inch with 2560x1600 Maximum Resolution
Converts Mini Displayport-Equipped Macr To Standard Or Dual-Link Dviactive Adapter Is Compatible With Eyefinity Multiple-Display Technologysupports Up To 2560X1600 Maximum Resolution With Dual-Link Dvi S Increased Bandwidth