"The Parhelia DL256 PCI is capable of dual link DVI resolutions up to 2560 x 1600, or four mega-pixels (4MP), which is the default resolution of the 30-inch Apple Cinema HD Display and provides expansive desktop space for extending timelines and tracks, viewing multiple video windows and mixers, and placing menus and controls. However, the Parhelia DL256 PCI has another trick up its sleeve, through an additional connector, you can attach a video monitor for real-time previews, or a second analog display for even more desktop real estate. If that weren't enough, What-You-See-Is-What-You-Get (WYSIWYG) video output plug-ins included for: Adobe® Premiere® Pro, Adobe After Effects®, Adobe Photoshop®, Discreet™ 3ds max™, Discreet combustion® 3, and NewTek Lightwave 3D® make you more productive then ever!" I can just hear all those video professionals jumping for joy. The ability to attach a video monitor to preview your video is also very cool.