Asus M4A87TD EVO Socket AM3/ AMD 870/ CrossFireX/ SATA3&USB3.0/ A&GbE/ATX Motherboard CPU: Socket AM3 Support AMD Phenom II /Athlon II /Sempron 100 Series Processors; Supports 45nm CPU; Support CPU upto 140W; FSB Upto 5200 MT/s Chipset: AMD 870 & SB850 Memory: 4x DDR3-2000(O.C.)/1600/1333/1066 DIMMs, Dual Channel, ECC/Non-ECC Un-buffered, Upto 16GB Slots: 2x PCI-Express 2.0 x16 Slot(Support ATI CrossFireX Technology); 1x PCI-Express 2.0 x1 Slots; 3x PCI Slots LAN: RTL8111E PCI-Express Gigabit Ethernet Controller, featuring AI NET 2 Ports: 12x USB 2.0 Ports (6 rear, 6 by headers); 2x USB3.0 Ports; 1x eSATA2 Power Connector: 1x 24pin ATX Power; 1x 4pin ATX 12V Power Port; 2x PS/2 Ports; 2x IEEE 1394 Ports(1 rear, 1 connector); 1x Optical S/PDIF Out; 1x RJ45 LAN Port; Audio I/O Jacks