Toshiba Satellite S50-ABT2N22 15.6" Quad Edition Windows 7 Professional 64 Notebook PC (S55 with Intel Core i7-4700MQ, Blu-Ray Burner, 2GB NVIDIA, Win 8 Pro Option) Windows 7 Professional 64-Bit; 2.4GHz/3.4GHz Quad Core Intel Core i7 4th Gen Haswell CPU 15.6" HD TruBrite LED Backlit Display; Blu-ray Disc RE Burner/Writer Optical Drive 2GB GDDR3 NVIDIA  GeForce GT 740M with Optimus Tech; 8GB DDR3L 1600MHz SDRAM 750GB 5400RPM hard drive; Bluetooth v4.0; HD Webcam & Microphone; EPEAT Gold Full Size Backlit Keyboard, harmon/kardon Audio, HDMI, WiFi-N, 1 Year Toshiba Warranty