Gigabyte GA-G31M-ES2L. Supported memory types: DDR2 1066(O.C.)/800/667 MHz, Memory voltage: 1.8 V, Maximum internal memory: 4 GB. Processor family: Intel, Processor socket: Socket 775, Processor front side buses supported: 1600(O.C.)/1333/1066/800 MHz. Audio system: Realtek ALC883, Audio output channels: 7.1. Width: 244 mm, Depth: 194 mm. Networking features: 10/100/1000 Mbit, LAN controller: Realtek RTL8111C