be used with a VESA mount adapter kit that was sold separately. Though the display enclosures had not been redesigned for a long period of time, several "silent" improvements were made to the brightness levels and contrast ratios.<ref>{{cite web | last = Taghap | first = Herschell | date = March 28, 2006 | url = https://arstechnica.com/gadgets/2006/03/3369/ | title = Apple's 30 Cinema Display gets quiet upgrade | publisher = Ars Technica | access-date =August 3, 2010}}</ref> 30-inch model compatibility Due to the high resolution (2560×1600), the 30-inch model requires a graphics card that supports dual-link DVI. When the monitor was released, no Macintosh models were sold with a dual-link DVI port. A Power Mac G5 with the new Nvidia GeForce 6800 Ultra DDL graphics card was initially required to run the display at full resolution. All Power Mac G5, PowerBook G4 15 or 17 inch and Mac Pro Mid 2006 to Mid 2010 models are capable of supporting it without the use of any adapters. Discrete MacBook Pros are also capable of driving the 30-inch display, while all Macs released after October 2008 require an additional adapter. The 30-inch Cinema Display was introduced together with the GeForce 6800, which supports two DVI-DL ports. ATI's aftermarket AGP X800 Mac Edition also supports dual-link DVI, but has only one port. The Radeon 9600 Mac/PC was another aftermarket graphics card that supported dual-link DVI and was also compatible with older AGP-based Power Macs. If a computer with a single-link DVI port (such as a Mac laptop with a mini-DVI connector) is connected to the 30-inch display, it will only run at 1280×800, even if the computer is capable of supporting 1920×1200 over a single-link connection. LED Cinema Display On October 14, 2008, the 20-inch Cinema Display and the 23-inch Cinema HD Display were replaced with a 24-inch model made with aluminum and glass, reflecting the appearances of the latest iMac, MacBook Pro and unibody MacBook designs. The display features a built-in iSight camera, microphone and dual speaker system. A MagSafe cable runs from the back of the display for charging notebooks. It is the first Cinema Display to use LED backlighting and Mini DisplayPort for video input; however, the LED backlighting is edge-lit as opposed to the fully back-lit CCFL of the previous models, resulting in a lower brightness cd/m2 output. This display is only officially compatible with Macs that have the