Processor support: Intel Core™ i 7 processors in an LGA1156 socket Intel Core™ i 5 processors in an LGA1156 socket Intel Core™ i 3 processors in an LGA1156 socket Intel Pentium processors in an LGA1156 socket Click Here For Compatible Intel processors Memory Two 240-pin DDR3 SDRAM Dual Inline Memory Module (DIMM) sockets Support for DDR3 1333 /1066 MHz DIMMs Support for up to 8 GB& Sigma; of system memory Chipset Intel H55 Express Chipset Audio Intel High Definition Audio◊2 subsystem in the following configuration: 8-channel (5.1+ 2 independent multi-streaming) audio subsystem with three analog audio outputs using the Realtek* ALC888S audio codec LAN support Gigabit (10/100/1000 Mbits/sec) LAN subsystem using the Intel 82578DC Gigabit Ethernet Controller Peripheral interfaces Up to twelve USB (Universal Serial Bus) 2.0 ports Four Serial ATA 3.0 Gb/s ports One serial port header One parallel port header One back panel PS/2 connector Expansion capabilities One PCI Express* 2.0 x 16 bus add-in card connector Two PCI Express 2.0 x 1 connectors One PCI Conventional bus connector