Asrock P45DE3. Supported memory clock speeds: 800, 1066, 1333, 1600 MHz, Maximum internal memory: 16 GB. Compatible processor series: Celeron, Core 2 Duo, Core 2 Quad, Processor socket: Socket 775. Audio output channels: 7.1, Audio system: VT1708S. Width: 305 mm, Depth: 203 mm. Networking features: Gigabit LAN 10/100/1000 Mb/s, LAN controller: Realtek RTL8111D(L)