Operating System : Windows 10 Home & Pro MAR Chipset : Intel Q67 Express Chipset Processors : Intel Core i3 2nd Gen Memory Support : Two (2) DIMM slots , Up to 8 GB DDR3 1333 MHz SDRAM  Hard Drive : Up to 1 TB, SATA 7200 RPM Removable Media : SATA DVD-ROM drive, SATA DVD Writer Drive, SATA Blu-ray Writer Drive (SL) Expansion Slots : One (1) Mini PCIe Graphics : Intel HD Graphics 2000 Audio : Realtek ALC269Q High Definition Audio Codec Communications : Intel 82579LM Gigabit Ethernet LAN 10/100/1000 I/O Ports : Front: Two (2) USB 2.0, microphone, headphone, Rear: Five (5) USB 2.0, Serial, Network Connector RJ-45, VGA, Display Port, Speakers Input Devices : Dell USB Entry Keyboard, Dell Pro Keyboard, Dell USB Entry Optical Mouse, Dell Laser Mouse Power : 200W High Efficiency Dimensions : (128 x 126 x 13) mm Weight : 1,65 kg