Operating System : Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS Chipset : Intel Q250 Processors : Intel 6th & 7th generation Core i7, i5, i3 Memory Support : Four (4) DIMM slots , Up to 64 GB DDR4 2133 MHz SDRAM  Hard Drive : SATA III HDD or SSD Removable Media : (optional) DVD-ROM Expansion Bays : 1 2.5-inch internal bays, 2 3.5-inch internal bays, 1 3.5-inch external bays, 2 5.25-inch external bays Expansion Slots : 1 x PCI-Express 3.0 x16, 1 x PCI-Express 2.0 x4 (mech. x16), 2x PCI-Express x1 Graphics : Intel HD Graphics 530 Audio : Realtek ALC671 Communications : 1 Gigabit ethernet I/O Ports : Front: headphone, microphone, 2x USB 2.0, 2x USB 3.0, 1x USB 3.1 Type C (Gen1),  Rear: 2x USB 2.0, 4x USB 3.0, , DVI, Ethernet (RJ-45), 2 DisplayPort Power : 280 W Dimensions : 180 x 304 x 375 mm Weight : Actual weight may vary depending on configuration