MSI Intel Core i7/ Core i5/ Core i3/ LGA 1156/ Intel H57/ 4DDR3-2133(OC)/GbE/HDMI/DVI/VGA/eSATA/1394 Micro ATX Motherboard H57M-ED65 HDMI, DisplayPort, DVI and D-Sub connectors that can only be used if have a Clarkdale processor with integrated graphics core Optical S/PDIF and six analog audio connectors provided by an eight-channel Realtek Four USB ports (eight more USB ports can be connected to the four onboard pin-connectors)