Apple Mac Pro A1289 MacPro5,1 (Mid 2010/Nehalem) Quad Core Intel Xeon W3530 @ 2.8GHz / 6GB DDR 1066MHz SDRAM / 500GB Seagate ST500DM002 HDD / OS X Mountain Lion / ATI Radeon HD 5770
Refurbished: Dell Precision T3500, Intel Xeon W3530 2.8GHz Quad Core CPU, 12GB memory, 500GB hard drive, NVIDIA GeForce GTX 660 SuperClocked, Windows 7 Professional Installed Desktop Computers - Newegg.com