Dell Studio XPS 8100 Series Intel Socket LGA1156 Desktop Motherboard T568R 0T568R CN-0T568R.Dell Part Number: T568R 0T568R CN-0T568RModel Number: DH57M01Compatible Part Numbers: 010130VA0-005-GCompatible Models: Dell Studio XPS 8100 Series Specifications:4 x USB Ports6 x Audio PortsDVI PortHDMI PorteSATA PortFireWire PortRJ-45 (LAN)AC Port