MSI Motherboard for ATX AM2 Nforce 550, PCI-E (K9NNEO-F-7260-010) Supports 4 DIMMs with DDR 800+ up to 4GB 1 PCI-E 16X; 2 PCI-E X1; 3 PCI; 10 USB Realtek 7.1 Channel High-Definition audio Gb LAN; RAID (0, 1 & 0+1); SATA2; ATA133 Live Update; Dual Corecell; MSI Dual CoreCenter; DOT, DigiCell