HP ProBook 4520s XT943UT#ABA Windows 7 Home Premium 32-bit Intel Core i3-370M(2.40GHz) 3MB L3 Cache Chipset Intel HM57 15.6" 1366 x 768 LED backlight 2GB DDR3 1066 Max Memory Supported 8GB 320GB 7200rpm DVD Super Multi LightScribe Intel HD Gigabit LAN and WLAN 1 x Express Card 6-cell (47 WHr) Li-Ion Up to 5 hours Ralink 802.11b/g/n Bluetooth 2.1+EDR HDMI eSATA Media Card Reader Webcam 2.0MP Weight 5.5 lbs = 2.49Å°·Î