MSI B450 GAMING PLUS MAX Motherboard, Socket AM4 to support AMD RYZEN 1st, 2nd and 3rd Generation / RYZEN with Radeon Vega Graphics / 2nd Gen RYZEN with Radeon Graphics / Athlon with Radeon Vega Graphics processors as MSI Compatibility List online, AMD B450 chipset, 4 x DDR4 Boost DIMM slots (Dual Channel, up to 64GB) to support DDR4 3733/ 3866/ 4000/ 4133 MHz (Ryzen Gen3 R5/R7/R9 processors required, by A-XMP OC MODE), 2667/ 2800/ 2933/ 3000/ 3066/ 3200/ 3466 MHz (by A-XMP OC MODE) and 1866/ 2133/ 2400/ 2667 MHz (by JEDEC), 1 x PCIe 3.0x16 (PCI_E1 with Steel Armor), 1 x PCIe 2.0x16 (PCI_E4, supports x4 mode) and 4 x PCIe 2.0x1 slots, 6 x SATAIII (6Gb/s) ports, 1 x Turbo M.2 slot (Key M) to support PCIe 3.0x4 (AMD RYZEN 1st, 2nd and 3rd Generation/ RYZEN with Radeon Vega Graphics and 2nd Gen RYZEN with Radeon Graphics) or PCIe 3.0 x2 (AMD Athlon with Radeon Vega Graphics) and SATAIII (6Gb/s) 2242/ 2260/ 2280/ 22110 SSDs, 2 x USB3.2 Gen1 + 4 x USB2.0 via internal USB connectors, 2 x USB3.2 Gen2 + 2 x USB3.2 Gen1 + 2 x USB2.0 and a PS/2 Combo port on the rear I/O panel, Realtek 8111H Gigabit LAN, 1 x DVI-D + 1 x HDMI port port (CPU with Radeon Vega Graphics required to enable those two on-board video ports), Supports 1 Serial port via internal connector, EZ Debug LED, Audio Boost 4 with Nahimic 3, Core Boost, Flash BIOS Button, Supports Windows 10 64-bit and Windows 7 64-bit (AMD Pinnacle Ridge or Summit Ridge CPU required)