ASUS P7H55-M PRO. Maximum internal memory: 16 GB. Processor family: Intel, Processor socket: Socket H(1156). Audio system: Realtek, Audio output channels: 7.1. Width: 245 mm, Depth: 245 mm. Controller (2nd) interface type: JMicron JMB368 PATA, Controller interface type: SATA 3.0 Gb/s