Apple Mac Pro 5,1 (2009) 12-Core 2.66GHz, 24GB RAM, 1TB HD, GT120 512MB, Mavericks 10.9 2x Intel Xeon 6-Core 2.66Ghz 'Westmere' Processors (12-Cores; 24-Threads) 24GB (6x 4GB) DDR3 1333Mhz ECC Memory - 1TB 7,200-rpm Hard Drive (new) nVIDIA GT120 512MB Graphics Card w/ 1x mini-Display Port and 1x DVI Output Bluetooth, Superdrive, Mavericks 10.9 OS Pre-owned. 14-Day Return and 30-Day Warranty Period. 1000+ Mac Pro's Sold. Visit our site at iBuildMacs.com or call (310) 844-6661.