Asrock A770DE. Supported memory types: DDR2 1066/800/667/533, Maximum internal memory: 16 GB. Processor family: AMD, Processor socket: Socket AM3, Processor front side buses supported: 2600 MHz. Audio system: VIA VT1708S, Audio output channels: 7.1. Width: 305 mm, Depth: 208 mm. Networking features: Gigabit LAN 10/100/1000 Mb/s, LAN controller: Realtek RTL8111D(L)