AMD B550 Ultra Durable Motherboard with Digital VRM Solution, PCIe 4.0 x16 Slot, Dual PCIe 4.0/3.0 M.2 Connectors, GbE LAN, Smart Fan 5 with FAN STOP Supports AMD Ryzen™ 5000 Series/ Ryzen™ 5000 G-Series/ Ryzen™ 4000 G-Series and Ryzen™ 3000 Series ProcessorsDual Channel ECC/ Non-ECC Unbuffered DDR4, 4 DIMMsUltra Durable™ PCIe 4.0 Ready x16 SlotDual Ultra-Fast NVMe PCIe 4.0/3.0 M.2 ConnectorsHigh Quality Audio Capacitors and Audio Noise Guard for Ultimate Audio QualityGbE LAN with Bandwidth ManagementRear DisplayPort and HDMI for Multi-display SupportSmart Fan 5 Features Multiple Temperature Sensors, Hybrid Fan Headers with FAN STOPAnti-Sulfur Resistors Design