Sapphire Pure Black X79N. Supported memory types: DDR3-SDRAM, Memory channels support: quad, Supported memory clock speeds: 1600 MHz. Processor family: Intel, Compatible processor series: Core i7, Processor socket: LGA2011. Audio output channels: 7.1, Audio system: Realtek ALC892. Width: 304 mm, Depth: 244 mm. Networking features: Gigabit Ethernet, LAN controller: Marvell 88E8057, Ethernet interface type: Fast, Gigabit