Based on AMD 990X /SB950 chipset, ASUS M5A99X EVO ATX motherboard lets you take advantage of the powerful AMD AM3+/AM3 multi-core processors. You’ll enjoy up to 5200MT/s HyperTransport 3.0 (HT 3.0) interface speed, quad USB 3.0 & SATA 6Gb/s and PCI Express 2.0 x16 graphics with support for CrossFireX and SLI technologies. The M5A99X EVO is equipped with DIGI+ VRM technology in addition to the TPU and EPU processors that offer enhanced performance and power management. DIGI+ VRM po Number of Memory Slots: 4×240pin Memory Standard: DDR3 2133(O.C.)/1866/1600/1333/1066 PCI Express 2.0 x16: 2 (x16 or dual x8) 1 (x4 mode, black) Onboard Video Chipset: None Audio Chipset: Realtek ALC892 Audio Channels: 8 Channels Max LAN Speed: 10/100/1000Mbps eSATA: 1 x eSATA 3Gb/s 1 x Power eSATA 3Gb/s