Brand Dell Series Dell Latitude Model Latitude E6420 OS Version Windows 7 Professional Processor Intel Core i5 Processor Speed Intel Core i5 2.5GHz upto 3.2GHz 2520M Processor Cache 3 MB Screen Size inch 14" Screen Resolution 1600 x 900 :HD+ LED Ram 4 GB Ram Type DDR3 Maximum Ram 16 GB Optical Drive Multiformat DVD Super Drive Hard Drive 320GB Sata Graphics Card nVidia Graphics Graphics Card Details Intel HD Graphics 3000 + nVidia NVS4200M Graphics Card Memory 1 GB Dedicated Lan Yes WiFi Yes , N Series Webcam Yes, HD Cam Bluetooth No Fingerprint Reader No Backlit Keyboard Yes USB 2.0 Ports 3 Ports USB / eSATA combo Yes VGA Port Yes HDMI Yes