Operating System : Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS Chipset : Intel® Q65 Chipset Processors : Intel® 2nd generation Core™ i5 Quad Core, i3 Dual Core and Pentium® Dual Core Memory Support : Four (4) DIMM slots , Up to 32 GB DDR3 SDRAM  Hard Drive : SATA III up to 1GB 3.5" 7200 rpm, SSD 256GB 2.5" Removable Media : DVD-ROM, DVD Super Multi, BD Triple Writer SATA slim (tray) Expansion Bays : External: One (1) 5.25-inch, One (1) 3.5-inch, Internal: One (1) 3.5-inch Expansion Slots : One (1) LP PCI-e 2.0 x16, One (1) LP PCI-e 2.0 x4, One (1) LP PCI-e 2.0 x1, One (1) LP PCI Graphics : Intel® HD Graphics 2000 Audio : Conexant CX20642 Communications : 10/100/1000 MBit/s Intel® 82579 V I/O Ports : Front: Four (4) USB, microphone, headphone  Rear: Eight (8) USB, Stereo LI, Speakers LO, DVI Input Devices : N/A Power : 280 watts 88% active PFC Dimensions : 340 x 382 x 98 mm (13.39 x 15.04 x 3.86 in) Weight : 10 kg (22.05 lb)