Operating System : Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS Chipset : Intel Q87 Processors : Intel i5, i7 4th Gen Memory Support : Two (2) SODIMM slots , Up to 16 GB DDR3 SDRAM  Hard Drive : SATA 7.200 rpm, SSD, mSATA Removable Media : DVD-ROM/ DVD-ReWritable (slim) Expansion Bays : One (1) external 5.25" slim, One (1) internal 2.5" Expansion Slots : One (1) MiniPCIe Graphics : Intel HD Graphics Audio : Realtek ALC221 codec Communications : Intel I217LM GbE Network Connection I/O Ports : Front: Two (2) USB 3.0, Two (2) USB 2.0, Audio I/O, Rear: Two (2) USB 3.0, Four (4) USB 2.0, RJ-45, VGA, DP, Audio I/O, PS/2 Input Devices : Standard Keyboard, Mouse ( USB or PS/2) Power : 135 W Dimensions : 25.4 cm x 25.1 cm x 6.6 cm Weight : 3.1 kg