The nVIDIA Quadro 4000 for Mac Display Card from PNY is a professional graphics card, intended for use in Apple's Mac Pro computer workstation. The card installs in an available PCI Express 2.0 x16 slot. It is compatible with the Early 2008, Early 2009, and Mid 2010 revisions of the Mac Pro. Mac OS X Snow Leopard (10.6.5) is required. Mac owners who use Windows via Boot Camp will also be able to take advantage of the card's features.