Connect your Mini DisplayPort video source to a DVI-D display
The MDP2DVID Mini DisplayPort to DVI-D Dual-Link adapter lets you connect your Mini DisplayPort video source (Macbook, Macbook Pro, Macbook Air, etc.) to any DVI-D display, including televisions and Apple Cinema Display HD, eliminating the expense of having to upgrade to a Mini DisplayPort-capable monitor. The Mini DisplayPort adapter offers an active conversion, which is powered by a single USB port and is able to handle full dual-link resolutions (up to 2560x1600). Use it to mirror your display to another monitor, or extend your desktop to increase your workspace. Backed by a StarTech.com 2-year warranty and free lifetime technical support.
" * USB-Powered operation means no wall outlet or bulky external power adapter is required
* Active conversion allows full dual-link DVI resolution (2560x1600)"