Operating System: Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS Chipset: N/A Processors: Intel 6th & 7th generation Core i3,i5,i7, Intel Pentium Memory Support: Two (2) SODIMM slots , Up to 16 GB DDR4 2400MHz Display: 19.5" 1600 x 900 Hard Drive : SATA HDD or SSD, M.2 SSD Removable Media : N/A Expansion Bays : Internal: One (1) 2.5-inch Expansion Slots : 2 M.2 connectors (Wi-Fi Card, Storage) Graphics : Intel HD Graphics Audio : Integrated Audio Communications : 1 Gigabit Ethernet , Bluetooth 4.1 I/O Ports : 6 External USB ports : USB 3.1 Gen 1 x 2 (side, one with PowerShare), USB 3.1 Gen 1 x 2 (rear), USB 2.0 x 2 (rear), 1 RJ-45, 1 DisplayPort 1.2 Out Input Devices : Standard Keyboard, Mouse (USB) Power : Internal Power Supply Unit; 130W Adaptor and 180W Adaptor Dimensions : Height: 32.87 cm (12.94") x Width: 48.25 cm (19.00?) x Depth: 5.89 cm (2.38?) Weight : 3.6 kg (7.92 lbs)