Gigabyte B550M DS3H AC AM4 Ryzen ATX Motherboard, 4x DDR4, 3x PCI-e, 2x M.2, 4x SATA III, RAID 0/1/10, 4x USB 3.2, 4x USB 2.0 Supports AMD Ryzen™ 5000 Series/ 3rd Gen Ryzen™ and 3rd Gen Ryzen™ with Radeon™ Graphics Processors Dual Channel ECC/ Non-ECC Unbuffered DDR4, 4 DIMMs 5+3 Phases Pure Digital VRM Solution with Low RDS(on) MOSFETs Ultra Durable™ PCIe 4.0 Ready x16 Slot Dual Ultra-Fast NVMe PCIe 4.0/3.0 M.2 Connectors High Quality Audio Capacitors and Audio Noise Guard for Ultimate Audio Quality GIGABYTE Exclusive 8118 Gaming GbE LAN with Bandwidth Management Rear HDMI & DVI Support RGB FUSION 2.0 Supports Addressable LED & RGB LED Strips Smart Fan 5 Features Multiple Temperature Sensors , Hybrid Fan Headers with FAN STOP Q-Flash Plus Update BIOS without Installing the CPU, Memory and Graphics Card Anti-Sulfur Resistors Design CPU AMD Socket AM4, support for: AMD Ryzen™ 5000 Series/ 3rd Gen Ryzen™ and 3rd Gen Ryzen™ with Radeon™ Graphics Processors (Please refer 'CPU Support List' for more information.) Chipset AMD B550 Memory 4 x DDR4 DIMM sockets supporting up to 128 GB (32 GB single DIMM capacity) of system memory AMD Ryzen™ 5000 series processors: Support for DDR4 4266(O.C.) / 4000(O.C.) / 3866(O.C.) / 3800(O.C.) / 3733(O.C.) / 3600(O.C.) / 3466(O.C.) / 3400(O.C.) / 3333(O.C.) / 3300(O.C.) / 3200 / 2933 / 2667 / 2400 / 2133 MHz memory modules 3rd Gen AMD Ryzen™ Processors: Support for DDR4 4400(O.C.) / 4000(O.C.) / 3600(O.C.) / 3333(O.C.) /3200/2933/2667/2400/2133 MHz memory modules 3rd Gen AMD Ryzen™ with Radeon™ Graphics processors: Support for DDR4 4733(O.C.) / 4600(O.C.) / 4400(O.C.) / 4000(O.C.) / 3600(O.C.) / 3333(O.C.) /3200/2933/2667/2400/2133 MHz memory modules Dual channel memory architecture Support for ECC Un-buffered DIMM 1Rx8/2Rx8 memory modules Support for non-ECC Un-buffered DIMM 1Rx8/2Rx8/1Rx16 memory modules Support for Extreme Memory Profile (XMP) memory modules