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 motherboards 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 Connectors With 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. *Actual support may vary by CPU. Exclusive Realtek 8118 Gaming LAN High 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 Support HDMI 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. Note: Only New Gen AMD Ryzen™ with Radeon™ Graphics processors support displaying function. 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. RGB FUSION 2.0 With B550 Motherboards, RGB Fusion 2.0 is even better with Addressable LEDs. RGB Fusion 2.0 offers users the option to control onboard RGB and external RGB / Addressable LED light strips* for their PC build. Already feature filled with colors and patterns, RGB Fusion 2.0 are now upgraded to improve the Addressable LED support. With external Addressable LED strips, where each LED is digitally addressable that users can experience even more patterns, styles, and illuminations. With B550 Motherboards support the external 5V Addressable LED lighting strips and up to 300 LED lights. RGB Fusion 2.0 with Addressable LEDs comes with new patterns and various speed settings with more to come. * The external RGB LED strips and Addressable LED strips are not included with Motherboard purchase. High-End Audio Capacitors GIGABYTE motherboards use high-end audio capacitors. These high quality capacitors help deliver high resolution and high fidelity audio to provide the most realistic sound effects for gamers. Audio Noise Guard GIGABYTE motherboards feature an audio noise guard that essentially separates the board’s sensitive analog audio components from potential noise pollution at the PCB level.  Q-Flash Plus Update the BIOS easily without installing the CPU, memory and graphics card. With GIGABYTE Q-Flash Plus, you don’t need to install the CPU, memory and graphics card nor enter the BIOS menu to flash the BIOS. Just download and save a new BIOS file (rename to gigabyte.bin) on the USB flash drive, then press the dedicated Q-Flash Plus button and you’re good to go! Solid Pin Power Connectors B550 motherboards feature solid plated ATX 12V 8pin power connectors for offering stable power supply while CPU overloading. Solid Pin Power connector advantages Larger contact area for electricity More metal quantity to sustain higher power and generated heat Ultra durable and longer lifespanXSplit Gamecaster Broadcaster: Cast Your Game Anytime, Anywhere Now set up your stage and share the greatest gaming moments with XSplit Gamecaster Broadcaster! Fully optimized social media integration is ready for real-time chats—keeping you notified yet focused in the game. It takes just one click to stream your gameplay to Twitch. Host your game like a pro! * Free 14 days XSplit Gamecaster Broadcaster Premium License. Main Features 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 CPU CPU Socket Socket AM4 CPU Brand AMD Installed Processors (Max) 0 (1) Supported Processor Manufacturer AMD Supported Processors 3rd Generation AMD Ryzen processors/ 3rd Generation AMD Ryzen with RadeonT Graphics processors 64-bit Support Yes Socket AM4 Rear Panel I/O Ports USB Ports 4 x USB 3.04 x USB 2.0 HDMI Port 1 x HDMI 2.1 Keyboard/Mouse Combo Port 1 x PS/2 RJ-45 Ports 1 x RJ-45 Digital Port 1 x DVI-D Audio Line In Ports 1 x 3.5mm Jack Audio Line Out Ports 1 x 3.5mm Jack Microphone In Port 1 x 3.5mm Jack Internal I/O Connectors SATA Connectors 4 x SATA III USB Connectors 1 x USB 3.0 header (supports 2 ports)1 x USB 2.0 header (supports 2 ports) Front Panel Connectors 1 x Front Panel1 x Front Audio Cooling Fan Support 1 x CPU fan header2 x System fan headers Serial Connectors 1 x COM header TPM Header 1 x TPM header Power Connector Port 1 x 20 4-pin ATX1 x 4 4-pin EPS Other Connectors 1 x M.2, Socket 3, M Key (Type 2242/2260/2280/22110)1 x M.2, Socket 3, M Key (Type 2242/2260/2280)2 x Addressable LED headers2 x RGB LED headers Memory Memory Bus Speed 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 Type DDR4 Maximum RAM 128 GB Memory Slot 4 x DIMM Motherboard Chipset Manufacturer AMD Northbridge B550 RAID Supported Yes RAID Format RAID 0, 1, 10 SATA Supported Yes Expansion Number of PCI Express Slots 1 x PCI Express 4.0 x161 x PCI Express 3.0 x16 (@ x4)1 x PCI Express 3.0 x1 Graphics Device Integrated Graphics Supported Yes Sound Integrated Sound Realtek ALC887 Warranty Warranty 3 Years Network Integrated Network Realtek GbE Network Speeds Supported 10/100/1000 Mbps Wireless LAN No Bluetooth No System Requirements Operating Systems Supported Microsoft Windows 10 64-bit System BIOS 1 x 256 Mbit flashUse of licensed AMI UEFI BIOSPnP 1.0a, DMI 2.7, WfM 2.0, SM BIOS 2.7, ACPI 5.0 Jumpers 1 x Clear CMOS Software Included (may be trial or restricted) Yes Drivers Yes Physical Form Factor MicroATX Motherboard Width 244 mm Length 244 mm Key Features Firewire No Wireless Network No Memory Channel Dual On-board Audio Type 7.1 Number of SATA Ports 4 port(s) Number of USB Ports 8 port(s) SATA III Support Yes USB 3.0 Support Yes Multi GPU Support No VGA Connection No DVI Connection Yes HDMI Connection Yes DisplayPort Connection No Motherboard Form Factor mATX Motherboard Power Connectors 4 4-Pin Motherboard Chipset AMD B550 Thunderbolt No Motherboard Model Gigabyte B550M DS3H USB 3.1 Support No Internal USB3.0 Header Yes M.2 Support Yes On-board RGB Control Gigabyte RGB Fusion Memory Speed 4733 MHz RGB Header Type 3-Pin ARGB Addressable RGB Yes