AMD B550 Gaming Motherboard with 10+3 Phases Digital Twin Power Design, Enlarged Surface Heatsinks, PCIe 4.0 x16 Slot, Dual PCIe 4.0/3.0 x4 M.2, GIGABYTE Gaming LAN with Bandwidth Management, Front USB Type-C™, RGB FUSION 2.0, Q-Flash Plus

Supports AMD Ryzen™ 5000 Series/ 3rd Gen Ryzen™ and 3rd Gen Ryzen™ with Radeon™ Graphics 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
GIGABYTE Exclusive 8118 Gaming LAN with Bandwidth Management
Front USB 3.2 Gen1 Type-C™ and HDMI & DVI-D for Multiple Display
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
Anti-Sulfur Resistors Design

CPU
AMD Socket AM4, support for: AMD Ryzen™ 5000 Series/ 3rd Gen Ryzen™ and 3rd Gen Ryzen™ with Radeon™ Graphics Processors
(Please refer "CPU Support List" 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
AMD Ryzen™ 5000 series processors:
Support for DDR4 4266(O.C.) / 4000(O.C.) / 3866(O.C.) / 3800(O.C.) / 3733(O.C.) / 3600(O.C.) / 3466(O.C.) / 3400(O.C.) / 3333(O.C.) / 3300(O.C.) / 3200 / 2933 / 2667 / 2400 / 2133 MHz memory modules
3rd Gen AMD Ryzen™ Processors:
Support for DDR4 4400(O.C.) / 4000(O.C.) / 3600(O.C.) / 3333(O.C.) /3200/2933/2667/2400/2133 MHz memory modules
3rd Gen AMD Ryzen™ with Radeon™ Graphics processors:
Support for DDR4 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 modules
Dual channel memory architecture
Support for ECC Un-buffered DIMM 1Rx8/2Rx8 memory modules
Support for non-ECC Un-buffered DIMM 1Rx8/2Rx8/1Rx16 memory modules
Support for Extreme Memory Profile (XMP) memory modules
(Please refer "Memory Support List" for more information.)
Onboard Graphics
Integrated in the 3rd Generation AMD Ryzen™ with Radeon™ Graphics processors:
1 x DVI-D port, supporting a maximum resolution of 1920x1200@60 Hz

• The DVI-D port does not support D-Sub connection by adapter.
  1 x HDMI port, supporting a maximum resolution of 4096x2160@60 Hz
  
• Support for HDMI 2.1 version, HDCP 2.3, and HDR.
  Maximum shared memory of 16 GB
  Audio
  Realtek® ALC887 codec
  High Definition Audio
  2/4/5.1/7.1-channel
  
• To configure 7.1-channel audio, you need to open the audio software and select Device advanced settings > Playback Device to change the default setting first. Please visit GIGABYTE's website for details on configuring the audio software.
  LAN
  Realtek® GbE LAN chip (1000 Mbit/100 Mbit)
  Expansion Slots
  1? x PCI Express x16 slot (PCIEX16), integrated in the CPU:
  3rd Generation AMD Ryzen™ processors support PCIe 4.0 x16 mode
  3rd Generation AMD Ryzen™ with Radeon™ Graphics 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.
  1 x PCI Express x16 slot (PCIEX2), integrated in the Chipset:
  Supporting PCIe 3.0 x2 mode
  3 x PCI Express x1 slots (PCIEX1_1, PCIEX1_2, PCIEX1_3), 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:
  3rd Generation AMD Ryzen™ processors support SATA and PCIe 4.0 x4/x2 SSDs
  3rd Generation AMD Ryzen™ with Radeon™ Graphics 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
  Chipset:
  1 x USB 3.2 Gen 2 Type-A port (red) on the back panel
  3 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
  6 x USB 2.0/1.1 ports (2 ports on the back panel, 4 ports available through the internal USB headers)
  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 (2x6 pin, for the GC-TPM2.0_S module only)
  1 x Clear CMOS jumper
  Back Panel Connectors
  2 x USB 2.0/1.1 ports
  1 x PS/2 keyboard/mouse port
  1 x DVI-D port
  1 x HDMI port
  3 x USB 3.2 Gen 1 ports
  1 x USB 3.2 Gen 2 Type-A port (red)
  1 x Q-Flash Plus button
  1 x RJ-45 port
  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
  Overheating warning
  Fan fail warning
  Fan speed control
  
• Whether the fan speed control function is supported will depend on the cooler you install.
  BIOS
  1 x 256 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
  Fast Boot
  Game Boost
  ON/OFF Charge
  RGB Fusion
  Smart Backup
  System Information Viewer
  Support for Q-Flash Plus
  Support for Q-Flash
  Support for Xpress Install
  Bundled Software
  Norton® Internet Security (OEM version)
  Realtek® 8118 Gaming LAN Bandwidth Control Utility
  Operating System
  Support for Windows 10 64-bit
  Form Factor
  ATX Form Factor; 30.5cm x 24.4cm