CybertronPC Steel-9600 Gaming Desktop - Liquid-Cooled Intel i7-6700K 4GHz Quad-Core Processor, 16GB DDR4 Memory, NVIDIA GTX960 (2GB GDDR5) Graphics, 2TB HDD, DVD&plusmn;RW, Windows 10 System: Liquid-Cooled 6th Gen Intel i7-6700K 4.00GHz 4-Core (4.2GHz Boost) | Z170 | 16GB DDR4-2400 PC4-19200 | 2TB HDD | Genuine Windows 10 64-Bit Graphics: NVIDIA GeForce GTX 960 2GB GDDR5 | 24X DVDRW Dual-Layer Drive | Audio: 7.1 Channel | Gigabit LAN | Keyboard & Mouse Expansion Bays/Slots Total(Free): 3(2) Ext. 5.25" | 4(2) Int. 3.5/2.5" | 2(2) PCI | 2(1) PCI-E x1 | 2(1) PCI-E x16 | 4(2) DIMM 288P Connectivity: 6x USB 3.0 | 2x USB 2.0 | 1x RJ-45 Network Ethernet 10/100/1000 | Audio | 1x DVI | 1x HDMI | 3x Display Port Chassis: Gaming Mid-Tower w/500 Watt Power Supply | 1 Year Parts & Labor Warranty | Free Lifetime Tech Support