Operating System : Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS Chipset : Intel Q77 Processors : Intel 3rd Generation Core i5 Memory Support : Four (4) DIMM slots , Up to 32 GB DDR3 1333 MHz SDRAM  Hard Drive : 160MB to 1 TB , 64GB to 1TB Solid State Drive (optional) Removable Media : SATA DVD-ROM drive, SATA DVD Writer Drive, SATA Blu-ray Writer Drive (SL) Expansion Bays : External: One (1) 5.25-inch (SL), Internal: One (1) 3.5-inch Expansion Slots : One (1) PCIe x16, One (1) PCIe x16 (wired x4) (LP) Graphics : Integrated Intel HD Graphics 2500/4000 (3rd G), 2000/3000 (2nd G) Audio : Realtek ALC269Q Communications : Intel 82579LM Gigabit Ethernet I/O Ports : Front: Four (4) USB, microphone, headphone, Rear: Six (6) USB, VGA, Serial, Two (2) DP, Audio I/O, PS/2 Input Devices : Standard Keyboard, Mouse (USB or PS/2) Power : 240W Dimensions : 290 x 92,6 x 312 mm Weight : 6 kg