Asrock A55M-HVS. Supported memory types: DDR3-SDRAM, Memory channels support: dual, Supported memory clock speeds: 800, 1066, 1333, 1600, 1866, 2400 MHz. Processor family: AMD, Compatible processor series: Opteron, Processor socket: Socket FM1. Audio output channels: 7.1. Width: 226 mm, Depth: 216 mm. Networking features: Gigabit Ethernet, LAN controller: Realtek RTL8111E, Ethernet interface type: Gigabit