B550 UD AC

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.

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.

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 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.

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.

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, 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.

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.

Form Factor

• ATX Form Factor; 30.5cm x 24.4cm

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

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

Graphics

• Integrated Graphics Processor with AMD Radeon™ Graphics support: 1 x HDMI port, supporting a maximum resolution of 4096x2160@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

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

• 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

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.

Audio

• Realtek® Audio CODEC, High Definition Audio, 2/4/5.1/7.1-channel

USB Ports

• 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

OS Support

• Windows 11 64-bit, Windows 10 64-bit

Internal I/O Ports

• 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 (2x6 pin, for the GC-TPM2.0_S module only), 1 x Clear CMOS jumper

Back I/O Ports

• 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

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.

I/O Controller

• iTE® I/O Controller Chip

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