MSI MAG B550M MORTAR WIFI AM4 M-ATX Motherboard 4xDDR4 4xPCIE 2xM.2 DP HDMI RAID LAN 6xSATAIII 2xUSB3.2 6xUSB2.0 SOCKET AM4 CPU (MAX SUPPORT) RYZEN 9 CHIPSET AMD B550 Chipset DDR4 MEMORY MEMORY CHANNEL Dual DIMM SLOTS 4 MAX MEMORY (GB) 128 PCI-E X16 2 PCI-E X1 2 SATAIII 6 M.2 SLOT 2 RAID 0/1/10 LAN 1x Realtek® RTL8125B 2.5G LAN USB 3.2 PORTS (FRONT) 1(Gen 1, Type C), 2(Gen 1, Type A) USB 3.2 PORTS (REAR) 1(Gen 2, Type C), 1(Gen 2, Type A), 2(Gen 1, Type A) USB 2.0 PORTS (FRONT) 4 USB 2.0 PORTS (REAR) 2 AUDIO PORTS (REAR) 5+ Optical S/PDIF (Realtek® ALC1200 Codec) DISPLAYPORT 1 HDMI 1 DIRECTX 12 FORM FACTOR Micro-ATX CROSSFIRE Y OPERATING SYSTEM Support for Windows® 10 64-bit