HP ProBook 6550b, Core i5-450M, Windows 7 Pro 64 Bit, 15.6" LED-backlit HD+ AG, ATI HD 540v 512MB Graphics, 4GB RAM, 320GB HDD, DVD+/-RW SM DL LS, WiFi b/g/n, Bluetooth, Webcam, Finger Print Reader, 1Yr Warranty, Office Ready, 6 Cell Battery