Operating System: Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS Chipset: Intel H110 Processors: Intel Core i3, i5, i7 6th & 7th Gen Memory Support: Two (2) SO DIMM slots DDR4 Hard Drive: Sata HDD SSD M2 Removable Media: optional Expansion Bays: External: One (1) 5.25-inch, Internal: One (1) 2.5-inch Expansion Slots: N/A Graphics: Intel HD Graphics Audio: Realtek ALC671 Communications: 10/100/1,000 MBit/s Realtek RTL8111GN I/O Ports: Audio: line-out, microphone, headphone, DisplayPort, DVI-D, Front: Two (2) USB 3.0, Rear: Two (2) USB 2.0,Two (2) USB 3.0 Power: 65W Dimensions: 185 x 190 x 54 mm Weight: 1.6 kg