Gigabyte B550 Eagle DDR4 AM4 ATX Motherboard Black
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Gigabyte B550 Eagle DDR4 — full-size ATX expansion, PCIe 4.0 and dual M.2 on AM4
A spacious ATX motherboard on AMD B550 designed for Ryzen 5000 and 3000 Series desktop processors. Features a reinforced PCIe 4.0 x16 graphics slot, four DDR4 slots reaching up to 4733+ MHz (O.C.), dual M.2 sockets (primary with Thermal Guard heatsink), Realtek Gigabit LAN, and rear Q-Flash Plus.
Board Map
Every connector, located before you unbox
AMD Socket AM4 — Centre
Supports AMD Ryzen 5000, 4000 G-Series, and 3000 Series desktop processors.
Digital VRM Heatsinks — Top & Left
Finned aluminum heatsink keeps voltage regulators cool under sustained multi-core compute.
4 × DDR4 DIMM Slots — Right
Dual-channel DDR4 supporting up to 128 GB memory capacity and high frequencies up to 4733+ MT/s (O.C.).
PCIe 4.0 x16 Graphics Slot — Centre
Reinforced PCIe 4.0 bandwidth directly connected to Ryzen processors.
2 × M.2 NVMe Sockets — Across PCB
Primary slot delivers ultra-fast PCIe 4.0 x4 speeds with Thermal Guard heatsink; secondary slot provides PCIe 3.0 x2 storage.
4 × SATA 6Gb/s Ports — Lower Right
Angled storage connections supporting RAID 0, 1, and 10 arrays.
Power Delivery & Thermals
What feeds the socket, and what keeps it steadyDigital VRM Power Layout
Precision voltage regulation ensures clean current delivery to AMD Ryzen 5000 series processors.
M.2 Thermal Guard Heatsink
Protects the primary PCIe 4.0 NVMe SSD against high thermal throttling during sustained data transfers.
Full ATX Expansion Layout
Offers multiple PCIe x16 and x1 expansion slots for capture cards, sound cards, and add-in adapters.
Q-Flash Plus BIOS Update
Easily update the BIOS firmware using only a USB thumb drive without installing a CPU or RAM.
Lane Map
Interface speed rating & capability relative to modern motherboard standardsRear I/O Bay
Exactly what appears on the back of your case
Will It Fit Your Build?
Check these before you add to cartProcessor
Compatible with AMD Ryzen 5000, 4000 G-Series, and 3000 Series desktop processors on socket AM4.
Memory
DDR4 only — 4 DIMM slots supporting up to 128 GB and speeds up to 4733+ MHz (O.C.).
Graphics
PCIe 4.0 x16 slot for high-performance discrete graphics cards.
Storage
2 × M.2 sockets (primary PCIe 4.0 with Thermal Guard heatsink) plus 4 SATA ports.
Case
Standard ATX form factor (30.5 cm x 24.4 cm) — requires standard ATX chassis.
BIOS Flash
Q-Flash Plus button on rear panel for effortless BIOS updates.
Full Specification Sheet
Gigabyte B550 Eagle DDR4| CPU Socket | AMD Socket AM4 |
| CPU Support | AMD Ryzen 5000, 4000 G-Series, 3000 Series Processors |
| Chipset | AMD B550 Chipset |
| Form Factor | ATX (30.48 cm x 24.38 cm) |
| Power Design | Digital VRM with aluminum heatsinks |
| Memory Slots | 4 × DDR4 DIMM, dual channel |
| Max Memory | 128 GB (up to DDR4-4733+ MHz OC) |
| Primary Graphics Slot | 1 × PCIe 4.0 / 3.0 x16 |
| Secondary PCIe Slots | 1 × PCIe 3.0 x16 (x2 mode), 3 × PCIe 3.0 x1 |
| M.2 Storage Sockets | 2 × M.2 (M.2_1 PCIe 4.0 x4 with Thermal Guard, M.2_2 PCIe 3.0 x2) |
| SATA Ports | 4 × SATA 6 Gb/s |
| Ethernet LAN | Realtek Gigabit LAN (1 Gbps / 100 Mbps) |
| Audio | Realtek High Definition Audio, 7.1-channel |
| Rear USB Ports | 1x USB 3.2 Gen 2 (10Gbps), 2x USB 3.2 Gen 1 (5Gbps), 4x USB 2.0 |
| Display Outputs | 1x HDMI, 1x DisplayPort |
