AMD AM4 Socket: Supports AMD Ryzen 5000 Series/ Ryzen 5000 G-Series/ Ryzen 4000 G-Series and Ryzen 3000 Series Processors DDR4 Compatible: Dual Channel ECC/ Non-ECC Unbuffered DDR4, 4 DIMMs Sturdy Power Design: 4+2 Phases Digital Twin Power Design with Low RDS(on) MOSFETs Connectivity: PCIe 4.0 x16 Slot, Dual Ultra-Fast NVMe PCIe 4.0/3.0 x4 M.2 Connectors, Realtek GbE LAN chip Fine Tuning Features: RGB FUSION 2.0, Supports Addressable LED & RGB LED Strips, Smart Fan 5, Q-Flash Plus Update BIOS without installing, CPU, Memory, and GPU. GIGABYTE B550M K motherboards maximize your PC's potential with AMD StoreMI technology. StoreMI accelerates traditional storage devices to reduce boot times and enhance the overall user experience. This easy-to-use utility combines the speed of SSDs with the high capacity of HDDs into a single drive, enhances the read/write speeds of the device to match that of SSDs, bolsters data performance for great value, and transforms the everyday PC to a performance driven system.