MSI X99S GAMING 9 AC EATX (Extended ATX) DDR4 NA Motherboards X99S GAMING 9 AC Socket LGA 2011-3 for Intel Core i7 Extreme Edition/ Core i7 processors Intel X99 chipset E-ATX 5 PCI-E 3.0 x16 4-way CrossFire/ SLI ready 1 Killer Gigabit LAN, Intel WiFi 802.11ac and Bluetooth Streaming Engine Dragon Armor