MSI Enthuastic Gaming Intel Z170A LGA 1151 DDR4 USB 3.1 ATX Motherboard (Z170A Gaming M9 ACK) Socket LGA 1151 for Intel 6th Generation Core/Pentium/Celeron processors Intel Z170 chipset 1 USB 3.1 Gen2 Type-A , 1 USB 3.1 Gen2 Type-C, 6 USB3.1 Gen1 (aka USB 3.0) and 5 USB2.0 ATX 3 PCI-E 3.0 x16 (2 with MSI Steel Armor) and 3 PCI-E 3.0 x1 3-way Crossfire/ 2-way SLI ready DDR4 Boost & XMP LED Audio Boost 3 & Nahimic Audio Enhancer