MSI B550M PRO-VDH WIFI Motherboard AMD Ryzen AM4, 4xDDR4, support up to 128GB, 1xPCIe 4.0/3.0 x16 slot, 4xSATA 6Gb, 7xUSB3.2, 6xUSB2.0, LAN, HDMI MSI B550M PRO-VDH WIFI PRO series helps users work smarter by delivering an efficient and productive experience. Featuring stable functionality and high-quality assembly, PRO series motherboards provide not only optimized professional workflows but also less troubleshooting and longevity. SPECIFICATIONS Model Name B550M PRO-VDH WIFI CPU Support Support for 3rd Gen AMD Ryzen processors and future AMD Ryzen processors with BIOS update CPU Socket AMD Socket AM4 Chipset AMD B550 Chipset Graphics Interface 1x PCIe 4.0 / 3.0 x16 slot Display Interface DisplayPort, HDMI , VGA Requires Processor Graphics Memory Support 4 DIMMs, Dual Channel DDR4-4400 MHz (OC) Expansion Slots 2x PCI-E 3.