Brand New and Sealed - Ships on or next business day Upon Payment. Product Features Mac OS X Snow Leopard is built on a rock-solid, time-tested UNIX foundation.Improvements include a more responsive Finder, new look and features for Exposé.New core technologies unleash the power of today's advanced hardware technology and prepare Mac OS X for future innovation:With virtually no effort on your part, Mac OS X protects itself--and you--from viruses, malicious applications, and other threatsMac OS X Snow Leopard includes built-in support for the latest version of Microsoft Exchange Server.64-bit computing, multicore-optimization, OpenCL, QuickTime X, and moreIt provides unparalleled stability as well as industry-leading support for Internet standardsStacks, quicker Time Machine backup, faster common tasks and installation, a smaller install footprint, and plenty more. You can use Mail, iCal, and Address Book at home and at work. System Requirements Media: DVD-ROMItem Quantity: 1