Gigabyte B550 UD AC ATX For AMD Ryzen 3rd Gen CPU - Socket AM4 - B550 Chipset - 4XDDR4 Dimm - 2x M.2 - 2x Internal USB 2.0 Header - 1x Internal USB 3.2 Header - 1x Internal Type C Header > Motherboards (2024)

Features:
B550 UD AC
AMD B550 Gaming Motherboard with 10+3 Phases Digital Twin Power Design, PCIe 4.0 x16 Slot, Dual PCIe 4.0/3.0 x4 M.2, GbE LAN with Bandwidth Management, Front USB Type-C®, RGB FUSION 2.0, Q-Flash Plus
– Supports AMD Ryzen™ 5000 Series/ Ryzen™ 5000 G-Series/ Ryzen™ 4000 G-Series/ Ryzen™ 3000 and Ryzen™ 3000 G-Series Processors
– Dual Channel ECC/ Non-ECC Unbuffered DDR4, 4 DIMMs
– 10+3 Phases Digital Twin Power Design with Low RDS(on) MOSFETs
– Ultra Durable™ PCIe 4.0 Ready x16 Slot
– Dual Ultra-Fast NVMe PCIe 4.0/3.0 x4 M.2 Connectors
– GbE LAN with Bandwidth Management
– Front USB 3.2 Gen1 Type-C® and HDMI
– High Quality Audio Capacitors and Audio Noise Guard for Ultimate Audio Quality
– RGB FUSION 2.0 support 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
AMD StoreMI Technology
GIGABYTE B550 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 incredible value, and transforms the everyday PC to a performance driven system.
The benefits of AMD StoreMI:
–Making the PC experience fast, smooth and easy
–Optimizing computer responsiveness from system boot to application launch
–Offering SSD performance with HDD capacity at an affordable cost
–Quickly accessing key files by automatically learning users’ computing behaviors
10+3 Phases Pure Digital VRM Solution with Low RDS(on) MOSFETs
GIGABYTE UD series motherboards use a 10+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.
Benefits of Low RDS(on) MOSFETs
–Optimized gate charge to minimize switching losses.
–Lower temperature, smaller size, better thermal characteristics.
Dual Band 802.11ac Wi-Fi
The onboard 802.11ac Wi-Fi module from Intel® supports Dual Band and up to 1.73Gbps, 5x faster Wi-Fi speed than 802.11n and also support BLUETOOTH 5.
Realtek GbE LAN with Bandwidth Management
Realtek Gigabit LAN features a network bandwidth management application which helps to improve network latency and maintain low ping times to deliver better responsiveness in crowded LAN environments.
Dual NVMe PCIe 4.0*/3.0 M.2 Connectors
With NVMe PCIe 4.0*/3.0 x4 and PCIe 3.0 x4 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.
USB Type-C™ Front Panel Connector
Equipped with next generation connectivity, GIGABYTE Motherboards already support the chassis of the future. The onboard USB Type-C™ header for USB 3.2 Gen1 makes access convenient when connecting a USB 3.2 Gen1 device or charging your mobile device.
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.
–6 Temperature Sensors
–5 Fan Pin Headers
–All Fan Pin Headers Upgraded to Hybrid Fan Headers
–Interoperable Fans and Sensors
–Intuitive UI for Fan Control
Different models have different number of fan pin headers and temperature sensors. Smart Fan 5 function may vary by model.
FAN STOP
Achieve 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.
Hybrid Fan Pin Headers
Assume complete control over your liquid cooling setup! Smart Fan 5 receives up-to-the-second information on flow-rate and water-temperature through the Hybrid Fan Pin Headers or external thermistor sensors-giving you absolute mastery over your PC.
–All Hybrid Fan Headers can automatically detect the type of cooling device whether it be fan or pump with different PWM or Voltage mode.
New Smart Fan 5 Software
Choose from different modes, Quiet to Full Speed, to match your system usage preferences.
For each fan or pump, you can use the intuitive fan curve to define trigger thresholds and corresponding fan speeds.
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.
With an integrated intuitive user interface, the RGB Fusion 2.0 provides you a better solution for customizing the lighting effects across all supported devices. From motherboards, graphics cards to the peripheral products, you can personalize your gaming rig with your own style and show off your build by sharing the profiles. In addition, the new gaming mode makes the lighting effects interactive with selected games to bring you the most immersive gaming experience.
GIGABYTE RGB Fusion APP
Don’t just make your PC shine, make it a work of art that friends will envy. With the GIGABYTE RGB Fusion mobile app users can watch as they control the lighting within their gaming PC. This gives users ease of access as they try and adjust colors and speeds for different modes, all this can be achieved away from the keyboard and monitor of their PC.
AUDIO
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!
GIGABYTE Patented Double Locking Bracket
Solid Pin Power Connectors
GIGABYTE motherboards feature solid plated ATX 12V 8pin power connectors to offer a stable power supply during 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 lifespan
* Photo for reference only
START SULFURIZATION PROTECTION
Sulfur compounds in the air can penetrate tiny onboard resistors creating chemical change and causing these resistors to open or short. If either of these occurs the motherboard will fail to function. By equipping resistors with an Anti-Sulfur Design GIGABYTE gives Ultra Durable Motherboards a whole new meaning.
Refreshed BIOS
The BIOS is essential for users during initial setup to allow for the most optimal settings. With a new GUI and easier to use functionalities, GIGABYTE has been able to reinvent the BIOS to give users a better experience while setting up their new system.
* Photos are for reference only. Product features may vary by model.
APP CENTER
GIGABYTE APP CENTER is an useful portal of all GIGABYTE MB utilities and drivers, you can choose any utility you want to install from APP CENTER and keep you updated with latest utilities and drivers version.
EasyTune™
GIGABYTE’s EasyTune™ is a simple and easy-to-use interface that allows users to fine-tune their system settings or adjust system and memory clocks and voltages in a Windows environment. With Smart Quick Boost, one click is all it takes to automatically overclock your system, giving an added performance boost when you need it the most.
@BIOS
The GIGABYTE @BIOS app allows you to update your system’s BIOS from within Windows using a simple and slick graphical user interface. @BIOS can automatically download the latest version from the GIGABYTE servers or you can update your BIOS from a file on your computer. @BIOS also allows you to save your current BIOS to a file, recover your previous BIOS from an image and backup your BIOS to an image.
System Information Viewer
GIGABYTE System Information Viewer is a central location that gives you access to your current system status. Monitor components such as the clocks and processor, set your preferred fan speed profile, create alerts when temperatures get too high or record your system’s behavior; these are the possibilities of the System Information Viewer.
Specifications:
CPU
AMD Socket AM4, support for: AMD Ryzen™ 5000 Series/ Ryzen™ 5000 G-Series/ Ryzen™ 4000 G-Series, Ryzen™ 3000 Series and Ryzen™ 3000 G-Series Processors
(Please refer “CPU Support List” from Gigabyte’s website 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
Support for DDR4 4733(O.C.) / 4600(O.C.) / 4400(O.C.) / 4266(O.C.) / 4133(O.C.) / 4000(O.C.) / 3866(O.C.) / 3733(O.C.) / 3600(O.C.) / 3466(O.C) / 3400(O.C.) / 3200/2933/2667/2400/2133 MHz memory modules
Dual channel memory architecture
Support for ECC Un-buffered DIMM 1Rx8/2Rx8 memory modules*
* ECC memory (ECC mode) support varies by CPU
Support for non-ECC Un-buffered DIMM 1Rx8/2Rx8/1Rx16 memory modules
Support for Extreme Memory Profile (XMP) memory modules
(The CPU and memory configuration may affect the supported memory types, data rate (speed), and number of DRAM modules, please refer to “Memory Support List” on GIGABYTE’s website for more information.)
Onboard Graphics
Integrated Graphics Processor with AMD Radeon™ Graphics support:
1 x HDMI port, supporting a maximum resolution of 4096×2160 @ 60 Hz
* Support for HDMI 2.1 version, HDCP 2.3, and HDR.
(Graphics specifications may vary depending on CPU support.)
Maximum shared memory of 16 GB
Audio
Realtek® Audio CODEC
High Definition Audio
2/4/5.1/7.1-channel
* You can change the functionality of an audio jack using the audio software. To configure 7.1-channel audio, access the audio software for audio settings.
LAN
Realtek® GbE LAN chip (1 Gbps/100 Mbps/10 Mbps)
Wireless Communication module
AzureWave Wi-Fi AW-CB304NF (Realtek® RTL8821CE)
– WIFI 802.11a, b, g, n, ac, supporting 2.4/5 GHz Dual-Band
– BLUETOOTH 5.0
– Support for 11ac wireless standard and up to 433 Gbps data rate
* Actual data rate may vary depending on environment and equipment.
Expansion Slots
1 x PCI Express x16 slot (PCIEX16), integrated in the CPU:
AMD Ryzen™ 5000 Series* Processors/AMD Ryzen™ 3000 Series Processors support PCIe 4.0 x16 mode
* Actual support may vary by AMD CPU’s specification.
AMD Ryzen™ 5000 G-Series/4000 G-Series/3000 G-Series Processors support PCIe 3.0 x16 mode
* For optimum performance, if only one PCI Express graphics card is to be installed, be sure to install it in the PCIEX16 slot.
4 x PCI Express x1 slots, integrated in the Chipset:
Supporting PCIe 3.0 x1 mode
Storage Interface
1 x M.2 connector (M2A_CPU), integrated in the CPU, supporting Socket 3, M key, type 2242/2260/2280/22110 SSDs:
AMD Ryzen™ 5000 Series/3000 Series Processors support SATA and PCIe 4.0 x4/x2 SSDs
AMD Ryzen™ 5000 G-Series/4000 G-Series/3000 G-Series Processors support SATA and PCIe 3.0 x4/x2 SSDs
1 x M.2 connector (M2B_SB), integrated in the Chipset, supporting Socket 3, M key, type 2242/2260/2280/22110 SSDs:
Supporting SATA and PCIe 3.0 x4/x2 SSDs
4 x SATA 6Gb/s connectors, integrated in the Chipset
Support for RAID 0, RAID 1, and RAID 10
USB
CPU:
AMD Ryzen™ 5000 Series/3000 Series Processors support one USB 3.2 Gen 2 Type-A port (red) on the back panel
AMD Ryzen™ 5000 G-Series/4000 G-Series/3000 G-Series Processors support one USB 3.2 Gen 1 port (red) on the back panel
1 x USB Type-C® port on the back panel, with USB 3.2 Gen 1 support
2 x USB 3.2 Gen 1 ports on the back panel
Chipset:
1 x USB Type-C® port with USB 3.2 Gen 1 support, available through the internal USB header
2 x USB 3.2 Gen 1 ports available through the internal USB header
4 x USB 2.0/1.1 ports available through the internal USB headers
Chipset+USB 2.0 Hub:
4 x USB 2.0/1.1 ports on the back panel
Internal I/O Connectors
1 x 24-pin ATX main power connector
1 x 8-pin ATX 12V power connector
1 x CPU fan header
1 x water cooling CPU fan header
3 x system fan headers
2 x addressable LED strip headers
2 x RGB LED strip headers
1 x CPU cooler LED strip/RGB LED strip header
2 x M.2 Socket 3 connectors
4 x SATA 6Gb/s connectors
1 x front panel header
1 x front panel audio header
1 x USB Type-C® port, with USB 3.2 Gen 1 support
1 x USB 3.2 Gen 1 header
2 x USB 2.0/1.1 headers
1 x Trusted Platform Module (TPM) header (2×6 pin, for the GC-TPM2.0_S module only)
1 x Clear CMOS jumper
Back Panel Connectors
4 x USB 2.0/1.1 ports
2 x SMA antenna connectors (1T1R)
1 x HDMI port
1 x USB 3.2 Gen 2 Type-A*/USB 3.2 Gen 1 port (red)
* For AMD Ryzen™ 5000 Series/3000 Series Processors only.
1 x USB Type-C® port, with USB 3.2 Gen 1 support
1 x Q-Flash Plus button
1 x RJ-45 port
2 x USB 3.2 Gen 1 ports
3 x audio jacks
I/O Controller
iTE® I/O Controller Chip
H/W Monitoring
Voltage detection
Temperature detection
Fan speed detection
Water cooling flow rate detection
Fan fail warning
Fan speed control
* Whether the fan speed control function is supported will depend on the cooler you install.
BIOS
1 x 128 Mbit flash
Use of licensed AMI UEFI BIOS
PnP 1.0a, DMI 2.7, WfM 2.0, SM BIOS 2.7, ACPI 5.0
Unique Features
Support for APP Center
* Available applications in APP Center may vary by motherboard model. Supported functions of each application may also vary depending on motherboard specifications.
@BIOS
EasyTune
RGB Fusion
Smart Backup
System Information Viewer
Support for Q-Flash Plus
Support for Q-Flash
Bundled Software
Norton® Internet Security (OEM version)
LAN bandwidth management software
Operating System
Support for Windows 11 64-bit
Support for Windows 10 64-bit
Form Factor
ATX Form Factor; 30.5cm x 24.4cm
Remark
Due to different Linux support condition provided by chipset vendors, please download Linux driver from chipset vendors’ website or 3rd party website.
Most hardware/software vendors may no longer offer drivers to support Win9X/ME/2000/XP. If drivers are available from the vendors, we will update them on the GIGABYTE website.
Manufacturer Part No:
B550 UD AC
Brand:
Gigabyte
Product Type:
ATX
UPC
889523035313
Product Family:
–
Shipping Weight:
1.25 kg
PB Part No:
MBDGBM35536
Product Model:
B550 UD AC
Warranty:
36 months *
* Warranty period is as stated above unless the manufacturer has chosen to specify a longer period.
All warranties are return to base unless otherwise specified.
PC Parts > Motherboards > AMD Desktop Motherboards
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