Description : MSI P67A-GD65 1155 ATX CPU (Max Support) i3/i5/i7 FSB / Hyper Transport Bus 100MHz Chipset Intel® P67 DDR3 Memory DDR3 1066/1333/1600*/2133*(OC) Memory Channel Dual DIMM Slots 4 Max Memory (GB) 32 PCI-Ex16 2 PCI-E Gen Gen2 (1x16, 1x8) PCI-Ex1 3 PCI 2 SATAIII 4 SATAII 4 RAID 0/1/5/10 LAN 10/100/1000*1 TPM 1 USB 3.0 ports (Rear) 2 USB 2.0 ports (Rear) 8 Audio ports (Rear) 6+Coaxial/Optical SPDIF 1394 ports (Rear) 1 eSATA 2 VGA Max Share Memory (MB) N/A Form Factor ATX DrMOS N/A APS Y SLI Y CrossFire Y