Operating System : Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS Display Size : 15.6" Display Max Resolution : 1366 x 768 Chipset : Intel HM77 Processors : Intel Core i3,i5,i7 2nd & 3rd Gen, Intel Celeron B Series Ram Memory : Two (2) slots, Up to 16 GB DDR3 Hard Disk Drive : Up to 500 GB 7.200rpm Graphics : Intel HD 3000 for Intel Core 2nd Gen, Intel HD 4000 for Intel Core 3rd Gen Network Adapter : Gigabit Ethernet WiFi : Yes Web Camera : Optional Optical Disc Drive : DVD-ROM/DVD Recordable USB : Two (2) USB 3.0, One (1) USB 2.0 , One (1) USB/eSata combo Ports : VGA, HDMI, Full and hald mini Card Slots, RJ-45, Express Card 54mm, Audio I/O, Docking Power Supply Adapter : 65 W Dimensions : 38.8 cm x 33.2 cm x 25.1 cm Weight : 2.38 kg