CybertronPC Blueprint CAD1192D Design Workstation Desktop (Black) (Discontinued by Manufacturer) System: Intel Core i7-3820 3.60GHz Quad-Core , Intel X79 Express Chipset , 32GB DDR3 , 1TB HDD , Genuine Windows 7 Professional 64-bit Graphics: NVIDIA Quadro 4000 2GB Video Card , 24X DVDRW Dual-Layer Drive , Audio: 5.1 Channel , Gigabit LAN , Card Reader , Keyboard and Mouse Expansion Bays/Slots Total(Free): 2(1) Ext. 5.25 Inch , 1(1) X-Dock Hot Swap , 7(6) Int. 3.5 Inch , 1(1) PCI , 3(3) PCI-E x1 , 2(1) PCI-E x16 , 8(4) DIMM 240P Connectivity: 2x USB 3.0 , 7x USB 2.0 , 1x RJ-45 Network Ethernet 10/100/1000 , Audio , 1x FireWire , 1x DVI , 2x DisplayPort Chassis: CoolerMaster Silencio 550 Full Tower Sound-Dampened Case with 600 Watt Power Supply , 1 Year Parts and Labor Warranty , Free Lifetime Tech Support