Asrock Intel Socket 775 Micro ATX motherboard. Supported memory types: DDRII667/533, Maximum internal memory: 4 GB. Processor family: Intel, Processor socket: Socket 775, Processor front side buses supported: 1066/800/533 MHz. Audio system: ALC888, Audio output channels: 7.1. Width: 244 mm, Depth: 244 mm. LAN controller: Realtek RTL8111B/RTL8111C