# GIGABYTE B550 UD AC (AM4/ AMD/ B550/ ATX/Dual M.2/ SATA 6Gb/s/USB 3.2 Gen 2/ Intel 802.11a/b/g/n/ac/Realtek GbE LAN/PCIe 4.0/ Motherboard)

- Category: Motherboard
- Brand: Gigabyte
- Model: B550 UD AC
- Part number: B550 UD AC
- Price (US): currently unavailable
- Price last checked: 2026-08-06
- Rating: 4.5/5 from 28602 Amazon reviews
- Warranty: 3 years
- Product page: https://buildmypc.net/component-details/motherboard/gigabyte-b550-ud-ac/

## Specifications

| Spec | Value |
| --- | --- |
| Brand | Gigabyte |
| Model | B550 UD AC |
| Socket Type | AM4 |
| Chipset | AMD B550 |
| Form Factor | ATX |
| Memory Type | 4 x DDR4 |
| Max Memory Support | 128 GB |

## Key Features

- AMD AM4 Socket: Supports AMD Ryzen 5000 Series/ Ryzen 5000 G-Series/ Ryzen 4000 G-Series and Ryzen 3000 Series Processors
- DDR4 Compatible: Dual Channel ECC/ Non-ECC Unbuffered DDR4, 4 DIMMs
- Sturdy Power Design: 10 plus3 Phases Digital Twin Power Design with Low RDS(on) MOSFETs
- Connectivity: PCIe 4.0 x16 Slot, Dual Ultra-Fast NVMe PCIe 4.0/3.0 x4 M.2 Connectors, Realtek GbE LAN chip
- Fine Tuning Features: RGB FUSION 2.0, Supports Addressable LED and RGB LED Strips, Smart Fan 5, Q-Flash Plus Update BIOS without installing, CPU, Memory, and GPU

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