These systems are Apple Certified Refurbished, have remaining factory warranty, and are eligible for extended Apple Care.
The Mac Pro "Twelve Core" 2.7 (Late 2013) is powered by a single 2.7 GHz Twelve Core 22-nm Xeon E5-2697v2 processor with a dedicated 256k of level 2 cache for each core and 30 MB of level 3 "Smart Cache." This configuration has 64 GB of 1866 MHz DDR3 ECC SDRAM, a 1TB SSD, and dual AMD FirePro D700 graphics processors with 6 GB of GDDR5 memory each.
Connectivity includes six Thunderbolt 2 ports, one HDMI 1.4 UltraHD port, 4 USB 3.0 ports, and Dual Gigabit Ethernet ports in addition to 802.11ac and Bluetooth 4.0.