MB AM4 Asus PRIME B550-PLUS ATX// CPUAMD AM4 Socket for AMD Ryzen™ 5000 Series/ 4000 G-Series/ 3000 Series Desktop Processors Processors *ChipsetAMD B550Memory4 x DIMM, Max. 128GB, DDR4 4600(O.C)/4400(O.C)/4266(O.C.)/4133(O.C.)/4000(O.C.)/3866(O.C.)/3733(O.C.)/3600(O.C.)/3466(O.C.)/3333(O.C.)/3200/3000/2800/2666/2400/2133 MHz Un-buffered Memory *Dual Channel Memory ArchitectureGraphic1 x DisplayPort 1.2 *1 x HDMI 2.1(4K@60HZ)Multi-GPU SupportSupports AMD 2-Way CrossFireX TechnologyExpansion Slots1 x PCIe 4.0 x16 (x16 mode)1 x PCIe 3.0 x16 (x4 mode)3 x PCIe 3.0 x1 *1Storage1 x M.2 Socket 3, with M key, type 2242/2260/2280/22110 storage devices support(SATA & PCIe 4.0 x4 mode)1 x M.2 Socket 3, with M key, type 2242/2260/2280/22110 storage devices support (SATA & PCIE 3.0 x 4 mode)*26 x SATA 6Gb/s port(s), *2Support Raid 0, 1, 10LANRealtek® RTL8111HAudioRealtek ALC887 7.1-Channel High Definition Audio CODECUSB PortsRear USB Port ( Total 8 )2 x USB 3.2 Gen 2 port(s)(1 x Type-A +1 x USB Type-C®)4 x USB 3.2 Gen 1 port(s)(4 x Type-A)2 x USB 2.0 port(s)(2 x Type-A)Front USB Port ( Total 6 )2 x USB 3.2 Gen 1 port(s)(2 x Type-A)4 x USB 2.0 port(s)(4 x Type-A)https://www.asus.com/Motherboards-Components/Motherboards/PRIME/PRIME-B550-PLUS/