GIGABYTE B550 X EAGLE — Full ATX AM4 Board for Ryzen 5000 Builds and Upgrades
AMD AM4 · B550PCIe 4.0 x16 + M.2DDR4 up to 128GB2.5GbE LAN
The GIGABYTE B550 X EAGLE is a full ATX motherboard for AMD AM4 processors on the B550 chipset, with a PCIe 4.0 x16 graphics slot, two M.2 slots and 2.5 Gigabit Ethernet, for budget gaming and office builds and for upgrading an older AM4 system while keeping DDR4 memory. It supports Ryzen 5000, 5000 G, 4000 G, 3000 and 3000 G Series CPUs and takes up to 128GB of DDR4-3200 in four slots, ECC or non-ECC unbuffered.
Storage covers a CPU-connected M.2 slot at PCIe 4.0 x4 (also SATA), a chipset M.2 slot at PCIe 3.0 x4 and four SATA ports with RAID 0/1/10. Four additional PCIe x16-size slots run at x1 for add-in cards. The rear panel offers USB 3.2 Gen 2 Type-A, a USB-C port, Q-Flash Plus and one HDMI output for CPUs with integrated graphics.
Before you order: There is no Wi-Fi or Bluetooth on this board — that is the B550 X EAGLE WIFI6E, a different model. With Ryzen G-series APUs the GPU slot and CPU M.2 run at PCIe 3.0.
What's in the Box
- GIGABYTE B550 X EAGLE motherboard
- Bundled accessories (cables, screws, I/O documentation) as listed in the GIGABYTE user manual — not itemised on the official spec page
What It Means in Practice
- A cost-effective way to build or repair a Ryzen 5000 PC and reuse existing DDR4 memory.
- A PCIe 4.0 graphics card and PCIe 4.0 NVMe SSD run at full Gen4 speed with Ryzen 5000/3000 CPUs.
- Four extra x1 slots suit capture, network or serial cards in office and lab PCs.
- 2.5GbE wired networking is built in; add a USB or PCIe Wi-Fi adapter if needed.
What Will Not Work
- No built-in Wi-Fi or Bluetooth.
- It does not support DDR5 memory or AM5 Ryzen 7000/8000/9000 CPUs.
- Only one video output (HDMI), and only with CPUs that have integrated graphics — no DisplayPort.
- Ryzen 1000 and 2000 Series CPUs are not on GIGABYTE's support list for this board.
Key Features
PCIe 4.0
PCIe 4.0 x16 graphics and PCIe 4.0 x4 M.2 with Ryzen 5000/3000.
Plenty of slots
Full ATX with four extra x1 slots, two M.2 and four SATA.
2.5GbE LAN
Realtek 2.5 Gigabit Ethernet on board.
Q-Flash Plus
Update the BIOS without CPU or memory installed.
Technical Specifications
| Identification |
| Brand |
GIGABYTE |
| Model |
B550 X EAGLE |
| Part Number |
B550 X EAGLE |
| Type |
Motherboard |
| Platform |
| Socket |
AMD AM4 |
| Chipset |
AMD B550 |
| CPU support |
AMD Ryzen 5000, 5000 G, 4000 G, 3000 and 3000 G Series |
| Memory |
4x DDR4 DIMM, up to 128GB (32GB per DIMM), dual channel |
| Memory speed |
DDR4 3200/2933/2667/2400/2133 MT/s, XMP; ECC and non-ECC unbuffered |
| Expansion & Storage |
| PCIe x16 (CPU) |
PCIe 4.0 x16 (Ryzen 5000/3000); PCIe 3.0 x16 (G-series) |
| PCIe (chipset) |
4x PCIe x16-size slots at PCIe 3.0 x1 |
| M.2 |
M2A_CPU SATA + PCIe 4.0 x4 (22110/2280); M2B_SB PCIe 3.0 x4 (22110/2280) |
| SATA |
4x SATA 6Gb/s |
| RAID |
RAID 0/1/10 |
| Networking & I/O |
| LAN |
Realtek 2.5GbE |
| Wireless |
None |
| Video output |
1x HDMI, 4096x2160@60 Hz (CPU with graphics) |
| Rear USB |
1x USB 3.2 Gen 2 Type-A, 1x USB-C (USB 3.2 Gen 1), 2x USB 3.2 Gen 1, 4x USB 2.0 |
| Other rear I/O |
Q-Flash Plus button, RJ-45, 3 audio jacks |
| Internal headers |
USB-C, USB 3.2 Gen 1, 2x USB 2.0, 3x ARGB Gen2, 1x RGB |
| Audio |
Realtek codec, 7.1-channel |
| Physical |
| Form factor |
ATX |
| Dimensions |
30.5 x 24.4 cm |
| OS support |
Windows 11 / 10 64-bit |
| Warranty |
| Warranty |
1-Year Warranty (Singular) |
| Manufacturer Term |
3-year limited local warranty per GIGABYTE (terms may vary by region) — claims handled through Singular |
Frequently Asked Questions
Will my Ryzen 5 5600 work?
Yes, Ryzen 5000 Series is supported. If the board ships with an older BIOS, Q-Flash Plus updates it without a CPU.
Can I use my old DDR4 kit?
Yes, any standard DDR4 unbuffered kit; speeds up to 3200 MT/s are listed, with XMP support.
Is there a Wi-Fi version?
Yes, the B550 X EAGLE WIFI6E is a separate model with Wi-Fi 6E and Bluetooth.
Singular Expert Insight · Buyer's Guide
The B550 X EAGLE is the sensible choice when the budget goes to the CPU and graphics card, or when an AM4 system needs a new board without changing memory. Need Wi-Fi? Add an adapter from our
network cards range.
✓ Buy it if you are building or repairing a Ryzen 5000/3000 PC with DDR4.
✕ Skip it if you want DDR5, a current AM5 CPU, or built-in Wi-Fi.
→ Also consider the B550 X EAGLE WIFI6E if you want wireless built in, or an AM5 B850 board for a new platform.
Send us your CPU and memory model and we will confirm BIOS support and compatibility before you order.