MSI PRO motherboard ATX AMD B550 MB5032 B550-A [with chipset]

MB5032 Japanese authorized distributor product 2 years warranty [Chipset/Socket] AMD B550/AM4 [CPU] 3rd generation AMD Ryzen processor [Form factor] ATX [Supported memory] DDR4 × 4 (maximum 128GB)/DDR4-4400(OC)MHz compatible [Expansion slot] PCIe 4.0/ 3.0(x16)x1(PCI_E1), PCIe 3.0(x16)x1(PCI_E3), PCIe 3.0(x1)x2 [Storage] SATA 6Gb/s x6, M.2 x2 [Interface] Keyboard/Mouse, Display, LAN, HD Audio Connectors, Flash BIOS Button, USB 2.0, HDMI, USB 2.0, USB 3.2 Gen 1 Type-A, USB 3.2 Gen 2 Type-A+C *Paper manuals have been discontinued due to environmental conservation activities. An electronic manual is available on the MSI web page. (Product web page ＞ Support ＞ Documentation ＞ Manual)