Operating System : Windows 7 or 10 Home & Pro, Ubuntu Linux, Free DOS Display Size : 15.6" Display Max Resolution : 1366 x 768 Chipset : N/A Processors : Intel Celeron, Core i3, i5, i7 G3 & G4 Ram Memory : (2) two Slots, DDR3, Up to 16GB Hard Disk Drive : SATA, 5.400rpm or SSD Graphics : Intel HD Graphics Network Adapter : 1 Gigabit Ethernet WiFi : Yes Web Camera : No (Optional) Optical Disc Drive : DVD-ReWritable USB : 2 x USB2, 2 x USB3 Ports : VGA, RJ-45, ExpressCard slot Power Supply Adapter : 65W Dimensions : 38.0 x 25.2 x 3.4 cm Weight : 2.6 kg