Operating System : Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS Chipset : Intel Q87 Processors : Intel 4th Gen Core i3,i5,i7, Intel Pentium, Intel Celeron Memory Support : Four (4) DIMM slots , Up to 32 GB DDR3 1600 MHz Hard Drive : Up to 2TB 7200rpm or SSD Removable Media : DVD-ROM/ DVD-ReWritable slim Expansion Bays : Internal: One (1) 3.5-inch External: One (1) 5.25-inch, One (1) 3.5-inch Expansion Slots : One (1) LP PCIe 3.0 x16 , One (1) LP PCIe 2.0 x4, Two (2) LP PCIe x1 Graphics : Intel HD Graphics Audio : Realtek ALC671 Communications : Intel l217LM GbE Network Connection I/O Ports : Front: Four (4) USB 2.0, Audio I/O, Rear: Four (4) USB 2.0,Two (2) USB 3.0, VGA, DP, DVI, Serial, RJ-45, PS/2, Audio I/O Input Devices : Standard Keyboard, Mouse (USB or PS/2) Power : 280 W Dimensions : 38.2 cm x 34 cm x 9.8 cm Weight : 10 kg