MSI X99S GAMING 9 ACK EATX DDR4 3000 LGA 2011-3 Motherboards Socket LGA 2011-3 for Intel Core i7 Extreme Edition/ Core i7 processors Intel X99 chipset E-ATX Form Factor 5 PCI-E 3.0 x16 4-way SLI & CrossFire ready Killer Double shot Pro (Killer Gb LAN + Killer Wi-Fi 11ac) and Bluetooth 4.1 Streaming Engine Dragon Armor