Product Detail Expansion Slots: Two (2) PCI Express x16 slots Two (2) PCI Express x1 slots Two (2) PCI slots I/O Ports: Internal Headers: Four (4) USB 2.0 ports One (1) 9-pin Regulatory Approvals: FCC CE C-Tick MIC BSMI RoHS compliant XFX MB-N680-ILT9 NVIDIA nForce 680i LT SLI Socket 775 ATX Motherboard IDE cable Two General Features: NVIDIA nForce 680i Socket 775 ATX Motherboard Socket 775 architecture ATX form factor . The "XFX nForce 680i LT SLI - Motherboard - ATX - nForce 680i LT SLI - LGA775 Socket - UDMA133, SATA-300 RAID - Gigabit Ethernet - FireWire - HD Audio 8-channel" is best product for you. We recommended XFX nForce 680i LT SLI - Motherboard - ATX - nForce 680i LT SLI - LGA775 Socket - UDMA133, SATA-300 RAID - Gigabit Ethernet - FireWire - HD Audio 8-channel