Operating System : Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS Chipset : AMD A78 Processors : AMD PRO A- Series Memory Support : Four (4)DIMM slots , Up to 32 GB DDR3L 1600MHz Hard Drive : SATA Hard Drive 7200 rpm Removable Media : DVD-ROM/ DVD-ReWritable Expansion Bays : External: One (1) slim ODD, Internal: Two (2) 3.5-inch, One (1) 2.5-inch Expansion Slots : One (1) PCIe x16 Low Profile, Two (2) PCIe Graphics : AMD Radeon HD Audio : Realtek ALC221 Communications : Gigabit Ethernet I/O Ports : Front: Two (2) USB 3.0, Two (2) USB 2.0, Audio I/O, Rear: Four (4) USB 2.0, Two (2) USB 2.0, VGA, RJ-45, Two (2) Display Port, Serial, Parallel,Two (2) PS/2, Audio I/O Input Devices : Standard Keyboard, Mouse (PS/2) Power : 200W Dimensions : 38 x 33.8 x 10 cm Weight : 6.6 kg