AMD B550 Ultra Durable Motherboard with Pure Digital VRM Solution, PCIe 4.0 x16 Slot, Dual PCIe 4.0/3.0 M.2 Connectors, GIGABYTE 8118 Gaming LAN, Smart Fan 5 with FAN STOP, RGB FUSION 2.0, Q-Flash Plus Supports 3rd Gen AMD Ryzen™ 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 PERFORMANCE 5+3 Phases Pure Digital VRM Solution with Low RDS(on) MOSFETs GIGABYTE UD series motherboards use a 5+3 phases pure digital PWM + Low RDS(on) MOSFETs design to support the 3rd Gen AMD Ryzen™ CPUs by offering incredible precision in delivering power to the motherboard''s most power-hungry and energy-sensitive components as well as delivering enhanced system performance and ultimate hardware scalability.Dual NVMe PCIe 4.0/3.0 M.2 ConnectorsWith NVMe PCIe 4.0/3.0 x4 and PCIe 3.0 x2 M.2 connectors onboard, GIGABYTE Motherboards bring users to experience NVMe mode or SATA mode connectivity for M.2 SSD devices. Delivering up to 64 Gb/s data transfer speed, the dual M.2 connectors design provides an ideal storage solution while also supporting in RAID modes. Exclusive Realtek 8118 Gaming LANHigh Speed Gigabit LAN with Automatic Bandwidth Allocation Realtek 8118 LAN is a high performance and friendly network chip for gaming players with automatic bandwidth allocation to ensure the highest network priority of the game or application. It can provide users the most comprehensive features and the fastest and smoothest Internet experience. HDMI 2.1 for 4K / 60P / 21:9 / HDCP 2.3 SupportHDMI 2.1, which is backwards compatible with HDMI 2.0/ 1.4 and offering 48 Gb/s of bandwidth - twice times more than previous generation. This unlocks the potential for users to transfer multiple video streams, as well as a native cinematic 21:9 ratio (which most movies are shot in), Full HDR and HDCP 2.3 support, to offer the best visual experience for viewers. COOLING Smart Fan 5 With Smart Fan 5 users can ensure that their gaming PC can maintain its performance while staying cool. Smart Fan 5 allows users to interchange their fan headers to reflect different thermal sensors at different locations on the motherboard. Not only that, with Smart Fan 5 more hybrid fan headers that support both PWM and Voltage mode fans have been introduced to make the motherboard more liquid cooling friendly. FAN STOPAchieve fan silence. With Fan Stop, map any fan to stop completely when temperatures drop below a specified threshold. Which fan stops, based on readings from which sensor, and at what temperature-all of it can be customized to your liking.