// CPU AMD AM4 Socket for AMD Ryzen™ 5000 Series/ 4000 G-Series/ 3000 Series Desktop Processors Processors * Chipset AMD B550 Memory 4 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 Architecture Graphic 1 x DisplayPort 1.2 * 1 x HDMI 2.1(4K@60HZ) Multi-GPU Support Supports AMD 2-Way CrossFireX Technology Expansion Slots 1 x PCIe 4.0 x16 (x16 mode) 1 x PCIe 3.0 x16 (x4 mode) 3 x PCIe 3.0 x1 *1 Storage 1 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)*2 6 x SATA 6Gb/s port(s), *2 Support Raid 0, 1, 10 LAN Realtek® RTL8111H Audio Realtek ALC887 7.1-Channel High Definition Audio CODEC USB Ports Rear 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/