CybertronPC QuattroMax GM3142B Gaming Desktop (Black) (Discontinued by Manufacturer) System: Intel Core i7-3770K 3.50GHz Quad-Core Unlocked, Z77 Express Chipset, 16GB DDR3, 120GB SSD, 2TB HDD, Genuine Windows 7 Home Premium 64-bit Graphics: 2x AMD Radeon HD7850 2GB Video Cards in CrossFireX, Blu-ray ROM / DVDRW Combo Drive, Audio: 7.1 Channel, Gigabit LAN, Card Reader Expansion Bays/Slots Total(Free): 4(2) Ext. 5.25", 1(0) Ext. 3.5", 5(3) Int. 3.5", 1( 1 ) PCI, 3(3) PCI-E x1, 3(1) PCI-E x16, 4(0) DIMM 240-Pin Connectivity: PS/2 KBD/MSE Combo, 8x USB 3.0 [2 front], 5x USB 2.0 [3 front], RJ-45 Network Ethernet 10/100/1000, 2x DVI, 2x HDMI, 4x Mini DSP Chassis: Thermaltake Level 10 GTS Mid-Tower w/750 Watt Power Supply, 1 Year Parts & Labor Warranty, Free Lifetime Tech Support