Lenovo Thinkpad 15.6" Business Laptop Computer - (2.2GHz Intel Core i5-5200U Processor, 8GB RAM, 500GB HDD, DVDRW, Windows 7 Professional) 15.6" High-Definition LED-Backlit Anti-glare Display 5th Gen Intel i5-5200U Processory (2.2GHz with turbo-boost up to 2.7GHz) 8GB DDR3 RAM; 500GB HDD 7200RPM; DVDRW; 6-cell (48Wh) Battery Wireless-AC 3160; Bluetooth 4.0; Dolby Advanced Audio v4 / JBL speakers; Windows 7 Professional 64-bit; 5.2 lbs