One (1) LP PCI Express x16, Two (2) LP PCI Express x1

Operating System : Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS
Chipset : Intel H81
Processors : Intel Core i3,i5,i7 4th Gen, Intel Pentium G, Intel Celeron
Memory Support : Two (2) DIMM slots, Up to 16GB DDR3 1600 MHz
Hard Drive : 3Up to 1TB 7200 rpm
Removable Media :DVD-ROM/ DVD-ReWritable
Expansion Bays :External: One (1) 5.25-inch, Internal: One (1) 3.5-inch
Expansion Slots :One (1) LP PCI Express x16, Two (2) LP PCI Express x1
Graphics :Integrated Intel HD
Audio :Integrated high-definition (HD) audio
Communications :Gigabit Ethernet
I/O Ports :Front: Two (2) USB 2.0, Audio I/O,  Rear: Two (2) USB 2.0, Two (2) USB 3.0, Audio I/O, VGA, DP, PS2
Input Devices : Standard Keyboard, Mouse (USB or PS/2)
Power : 240 W
Dimensions : 38.2 cm x 33.5 cm x 10.1cm
Weight :6.6 kg