ThinkStation P510 TWR 490W Intel® Xeon® Processor E5-1620 v4 (10M Cache, 3.50 GHz) 16GB ECC DDR4 (2 x 8GB) 1TB 7200 RPM Win 10 Pro 64 DG Win 7 Pro 64 “NO GRAPHIC CARD” DVD±RW Unique Key per system