Asrock 785GM-S3. Supported memory clock speeds: 800, 1066, 1333, 1600, 1800 MHz, Maximum internal memory: 8 GB. Processor family: AMD, Processor socket: Socket AM3, System bus: 5.2 GT/s. Audio output channels: 5.1, Audio system: ALC662. PCI Express slots version: 2.0. Width: 244 mm, Depth: 183 mm