Number of Memory Slots: 4×240pin Memory Standard: DDR3 800/1066/1333/1600(OC)/1866(OC)/ 2000(OC) PCI Express 2.0 x16: 1 Onboard Video Chipset: None Audio Chipset: Realtek ALC662 Max LAN Speed: 10/100/1000Mbps SATA 3Gb/s: 6 CPU Type: Core i7 (LGA1156)/i5 (LGA1156)