Dell Alienware AX51-6711BK Desktop (Black) / Intel Core i7-2660 3.4GHz, 8GB DDR3, 1 TB SATA 7200 RPM, 1GB GDDR5 NVIDIA GeForce GTX555, Blu-ray Disc combo drive, Windows 7 Home Intel Core i7-2660 3.4GHz Quad Core (8MB Cache) with Hyper-Threading and Turbo Boost Technology 2.0 Genuine Windows 7 Home Premium, 64-bit 8GB DDR3 ; 1TB SATA (3.0Gb/s, 7200 RPM, 16MB cache) 1GB GDDR5 NVIDIA GeForce GTX555 ; Slot-Loading Dual Layer Blu-ray Reader (BD-ROM, DVD+RW, CD-RW) Alienware multimedia keyboard and optical mouse; 2 USB 3.0  4 USB 2.0  1 HDMI and 1 mini-HDMI  2 headphone output  2 microphone input  1 optical S/PDIF and 1 coaxial S/PDIF  RJ-45 (10/100/1000)