**OS X Mavericks** The Mac Pro runs on Apple's intuitive Mavericks operating system. Simple to navigate yet capable of professional-level computing, it provides an expressive platform for you work & play the way you want. There are over 200 new features & updates compared to the previous generation OS, including enhanced software & device integration, new apps & enhancements for users with multiple displays. ** Unparalleled power** With four cores, eight threads & an impressive 3.7 GHz clock speed, the quad-core Intel® Xeon® runs the most demanding professional-level creative software without issue. Supporting the processor is 12 GB of DDR3 RAM. Enough for effortless everyday performance, it ensures instant multitasking & work-flow regardless of your project size. You're set for the future too, as there's space for a vast 64 GB should you need more. ** Bespoke graphics** The Mac Pro features two bespoke AMD Fire Pro D300 graphics cards for impressive video, photo & graphics handling. Featuring 2 GB of GDDR5 of RAM, 1, 280 stream processors & a 256-bit memory bus along with support for 4K video quality across multiple monitors, you can enjoy your media & software at its very best. ** Solid-state storage** Files storage is provided by a 256 GB solid-state drive. With far-faster data transfer rates than traditional hard drives, an SSD is the ultimate storage option for high-performance computing. When it comes to backing up, four USB (Universal Serial Bus) 3.0 ports make light work of backing up even the biggest project files to external media. ** Unique design** Completely designed from the ground up, the Mac Pro's internal components are contained in a compact yet durable cylindrical aluminium case. With easily accessible ports, effective cooling & plenty of room for expansion thanks to six Thunderbolt 2 ports, you won't find yourself missing the regular desktop format. Getting online is simple with twin gigabit Ethernet ports & built