Operating System : Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS Chipset : Intel Q67 Processors : Intel Core i5 2nd Gen Memory Support : Four (4) DIMM slots , Up to 16 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 (slimline), Internal: One (1) 3.5-inch Expansion Slots : One (1) PCIe x16, One (1) PCIe x16 (wired x4) (LP) Graphics : Integrated Intel HD Graphics 2000 Audio : Realtek ALC269Q High Definition Audio Codec Communications : Integrated Intel 82579LM Ethernet LAN 10/100/1000 I/O Ports : Front: Four (4) USB, microphone, headphone, Rear: Six (6) USB, Serial, DP, VGA,RJ-45, Stereo L/I, Speakers L/O Input Devices : Dell USB Entry Keyboard, Dell USB Multimedia Pro Keyboard, Dell USB Entry Optical Mouse, Dell Laser Mouse Power : 240W Dimensions : 290 x 92.6 x 312 mm Weight : 5.70 kg