Gigabyte GA-H55M-S2. Memory voltage: 1.5 V, Maximum internal memory: 16 GB. Processor family: Intel, Processor socket: Socket H(1156), Compatible processor series: Intel Core i7/i5/i3. Audio system: Realtek ALC888B, Audio output channels: 7.1. Width: 244 mm, Depth: 210 mm. Controller interface type: iTE IT8720