ASRock 970M Pro3 AM3+/AM3 AMD 970 + AMD SB950 6 x SATA 6Gb/s USB 3.0 Micro ATX AMD Motherboard Number of Memory Slots: 4×240pin Memory Standard: DDR3 2400+*(*O.C.)/ 2100*/ 1866*/ 1800*/ 1600*/ 1333/ 1066 PCI Express 2.0 x16: 2 x PCI Express 2.0 x16 Slots (PCIE2: x16 mode; PCIE3: x4 mode) Onboard Video Chipset: None Audio Chipset: Realtek ALC892 PCI Express x1: 1 x PCI Express 2.0 x1 Slot Audio Channels: 7.1 CH HD Audio with Content Protection * To configure 7.1 CH HD Audio, it is required to use an HD front panel audio module and enable the multi-channel audio feature through the audio driver. Max LAN Speed: 10/100/1000Mbps