Operating System : Windows 10 Home & Pro, Ubuntu Linux, Free DOS Display Size : 15.6'' Display Max Resolution : 1366 x 768 or 1920 x 1080 Chipset : Intel HM87 Express chipset Processors : Intel Core i3, i5, i7 4th Gen Ram Memory : Two (2) SODIMM slots, DDR3, Up to 8GB, 1600MHz Hard Disk Drive : SATA, 5.400rpm or 7200rpm, SSD (optional) Graphics : Intel® HD Graphics (integrated) Network Adapter : Gigabit Ethernet WiFi : Yes Web Camera : 720p HD Optical Disc Drive : DVD ROM / DVD ReWritable USB : 2 x USB 3.0 , 1 x USB 2.0 Ports : VGA, HDMI, RJ-45, 4-in-1 SD Card Reader, Lenovo OneLink Power Supply Adapter : N/A Dimensions : 377 x 250 x 30 mm Weight : 2.46 kg