Gigabyte B550 EAGLE ATX Motherboard AMD Socket AM4 AMD B550 Chipset — Supports Ryzen 5000/4000/3000 Series CPUs, 4x DDR4 DIMM up to 128GB 3200 MHz, PCIe 4.0 x16, 2x M.2 Slots (1x PCIe 4.0 + 1x PCIe 3.0), Realtek Gigabit LAN, 4x SATA 6Gb/s, HDMI, USB 3.2 G

General Information

The Gigabyte B550 EAGLE ATX is a solid mid-range motherboard designed for AMD AM4 platform builds, supporting Ryzen 5000, 4000, and 3000 series processors, including G-Series APUs. It offers PCIe 4.0 x16 GPU support, robust power delivery, and modern connectivity, making it ideal for gaming rigs, content creation workstations, and productivity systems.

With Smart Fan 6, VRM Thermal Armor, and Q-Flash Plus BIOS update button, this board provides a reliable foundation for stable performance and easy upgrades.

CPU & Chipset

• Socket: AM4 – supports:
  • AMD Ryzen™ 5000, 4000, 3000 series (Zen 3, Zen 2, Zen+)
  • AMD Athlon™, APU (if compatible)
• Chipset: AMD B550 – mid-range chipset with full PCIe 4.0 support
• Memory Support:
  • 4 x DDR4 DIMM slots – dual-channel architecture
  • Max Capacity: 128GB (4x 32GB)
  • Speeds: Up to 3200 MHz (OC) via XMP
  • Types: Non-ECC, ECC, unbuffered DDR4
  • Features:
    • XMP support for easy overclocking
    • DIMM Flex & DIMM Fit for optimal slot compatibility

Graphics & Display Output

• Integrated Graphics: Supports AMD Radeon Graphics (based on CPU)
• Display Outputs (Back Panel):
  • 1 x HDMI 2.1 – supports 4K@60Hz (with HDR)
• Multi-Monitor Support:
  • Can drive up to 1 display (HDMI only)
• Note: For high-performance gaming, a discrete GPU is recommended.

Expansion & Connectivity

• PCIe Slots:
  • 1 x PCIe 4.0 x16 – for next-gen GPUs (supports x16 or x8/x8 modes)
  • 4 x PCIe 3.0 x16 – for expansion cards (sound, capture, etc.)
• Storage Options:
  • 2 x M.2 slots (Key M) – all support NVMe SSDs:
    • M.2_1: PCIe 4.0 x4 (max 64 Gbps)
    • M.2_2: PCIe 3.0 x4 (max 32 Gbps)
  • 4 x SATA 6Gb/s ports – for HDDs, SSDs, optical drives
• RAID Support:
  • AMD RAIDXpert2 Technology – supports RAID 0/1/5/10
  • Some PCIe slots share bandwidth with SATA ports

Networking & Wireless

• Ethernet:
  • 1 x Realtek Gigabit LAN (1 Gbps) – wired gigabit connectivity
  • Supports WOL (Wake-on-LAN) and PXE boot
• Wireless:
  • No built-in Wi-Fi or Bluetooth – requires add-on card or USB adapter
  • Thunderbolt 4 header can support Wi-Fi via Thunderbolt card

USB Ports

• Rear I/O:
  • 1 x USB 3.2 Gen 2 Type-A (10 Gbps)
  • 1 x USB 3.2 Gen 1 Type-C (5 Gbps)
  • 4 x USB 3.2 Gen 1 Type-A (5 Gbps)
  • 1 x USB 2.0 Type-A (5 Gbps)
• Front Panel Headers:
  • 1 x USB 3.2 Gen 1 header (supports 2 x USB 3.2 Gen 1 ports)
  • 2 x USB 2.0 headers (supports 3 x USB 2.0 ports)

Cooling & Thermal Management

• VRM Heatsinks:
  • Large VRM thermal armor with 5 W/mK thermal pads
  • Prevents overheating under load
• Fan Control:
  • Smart Fan 6 – automatic fan curve optimization
  • 5 x 4-pin Chassis Fan headers
  • 1 x 4-pin CPU Fan header
  • 1 x 4-pin CPU OPT Fan header
  • 1 x 4-pin AIO Pump header

RGB & Lighting

• RGB Headers:
  • 3 x Addressable Gen 2 RGB headers – compatible with Gigabyte RGB Fusion
  • 1 x Standard RGB header – for basic lighting effects
• Control Software:
  • Gigabyte RGB Fusion – customizable lighting effects and synchronization

Protection & Build Quality

• Gigabyte 5X Protection:
  • DIGI+ VRM – digital power design with DrMOS
  • ESD Guards – protection against electrostatic discharge
  • LANGuard – network surge protection
  • Overvoltage Protection
  • SafeSlot – reinforced PCIe slot
  • Stainless-steel back I/O shield
• Build Material:
  • High-quality PCB with 6-layer design
  • Reinforced chassis and connectors

Special Features

• Gigabyte Q-Design:
  • Q-Flash Plus – update BIOS without CPU or memory
  • EZ-Latch – tool-less PCIe slot
  • Q-DIMM – secure DIMM slot design
  • Q-Connector – simplified cable routing
  • Q-Dashboard – system monitoring
• ASUS EZ DIY:
  • BIOS FlashBack™ button – update BIOS without a CPU
  • Clear CMOS button
  • Pre-mounted I/O shield
  • SafeDIMM – prevents accidental DIMM removal
• ASUS Thermal Solution:
  • M.2 heatsink backplate
  • M.2 heatsink
  • VRM heatsink design