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GIGABYTE B550 UD AC AM4 AMD B550 SATA 6Gb/s ATX Motherboard

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  • B550 AORUS ELITE
  • B550 AORUS ELITE V2
  • B550 AORUS ELITE AX V2
  • B550 GAMING X
  • B550 GAMING X V2
  • B550M K
  • B550 UD AC
  • B550M AORUS PRO-P
  • B550 VISION D-P
  • B550M AORUS ELITE
  • B550I AORUS PRO AX
  • B550M DS3H AC
  • AMD B550
  • Ryzen 3000 Series / Ryzen 4000G Series / Ryzen 5000 Series / Ryzen 5000G Series
  • 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
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Specs
Reviews (1,524)

Learn more about the GIGABYTE B550 UD AC

Model
Brand GIGABYTE
Model B550 UD AC
Supported CPU
CPU Socket Type AM4
CPU Type Ryzen 3000 Series / Ryzen 4000G Series / Ryzen 5000 Series / Ryzen 5000G Series
Chipsets
Chipset AMD B550
Memory
Number of Memory Slots 4x288pin (DDR4)
Memory Standard 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
Maximum Memory Supported 128GB
Channel Supported Dual Channel
ECC Supported 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
Buffer Supported Un-buffered
Memory Feature Support for Extreme Memory Profile (XMP) memory modules
Expansion Slots
PCI Express 4.0 x16 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
AMD Ryzen 5000 G-Series/4000 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.
PCI Express x1 4 x PCI Express x1 slots, integrated in the Chipset:
Supporting PCIe 3.0 x1 mode
Storage Devices
SATA 6Gb/s 4 x SATA 6Gb/s
M.2 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 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
SATA RAID 0/1/10
Onboard Audio
Audio Channels 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.
Onboard LAN
LAN Chipset Realtek GbE LAN chip
Max LAN Speed Realtek Wi-Fi RTL8821CE
WIFI 802.11a, b, g, n, ac, supporting 2.4/5 GHz Dual-Band
Wireless LAN Wi-Fi 802.11 ac
Bluetooth Bluetooth 4.2
Rear Panel Ports
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 port (red)
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
Internal I/O Connectors
Onboard USB 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
Other Connectors 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 Trusted Platform Module (TPM) header (2x6 pin, for the GC-TPM2.0_S module only)
1 x Clear CMOS jumper
Physical Spec
Form Factor ATX
Dimensions (W x L) 12.0" x 9.6"
Power Pin 1 x 24-pin ATX main power connector
1 x 8-pin ATX 12V power connector
Software Feature
Windows 11 Supported
Features
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
Support for Xpress Install
Additional Information
Date First Available February 08, 2023

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 3 years
  • Read full details

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