Gigabyte B550M DS3H AC R2 Ultra Durable AMD AM4 Socket Motherboard, Micro-ATX, 4x DDR4 Slots, 2x M.2 Socket, GbE LAN, Wi-Fi 5, 1x DisplayPort / 1x HDMI Port

Gigabyte B550 AMD AM4 Socket Motherboard (Micro ATX)

A feature-rich Gigabyte B550 motherboard designed for AMD AM4 builds, offering powerful performance, flexible connectivity, and enhanced cooling and lighting controls.

Key Features

• AMD AM4 Socket

• Supports:

  • AMD Ryzen 5000 G-Series Processors
  • AMD Ryzen 5000 Series Processors
  • AMD Ryzen 4000 G-Series Processors
  • AMD Ryzen 3000 G-Series Processors
  • AMD Ryzen 3000 Series Processors

• Digital 5+3 Phases VRM Solution

• Pure digital PWM design with Low RDS(on) MOSFETs

• Delivers precise, stable power for 3rd Gen AMD Ryzen CPUs and supports enhanced performance and scalability

• Dual Channel DDR4 Memory

• 4 × DIMM slots, up to 128 GB total system memory

• Ultra-Fast Storage

• Dual M.2 slots, including PCIe 4.0 support

• RAID 0, 1, 10 for NVMe and SATA devices

• Fast Networking

• Realtek GbE LAN
• Realtek Wi-Fi RTL8821CE (802.11 a/b/g/n/ac, Dual Band)

• Bluetooth 5.0

• Advanced Cooling – Smart Fan 6

• Multiple PWM/DC fan and pump headers
• High current support (up to 24 W per header) with over-current protection
• Precision fan curve control with multiple temperature points
• Dual curve mode (Slope/Stair)

• Fan Stop function at user-defined temperatures

• Enhanced Graphics & Display

• PCIe 4.0 x16 slot (CPU-dependent) with EZ-Latch quick-release design and reinforced PCIe UD Slot

• HDMI 2.1 and DisplayPort 1.4 with 4K, HDR, and HDCP 2.3 support

• RGB FUSION 2.0 Lighting

• Onboard RGB and Addressable LED support
• Supports external 5V addressable LED strips (up to 300 LEDs)

• Customizable patterns, speeds, and game-interactive lighting

• High-Quality Audio

• Realtek ALC1220 audio codec
• High-end audio capacitors

• Audio Noise Guard PCB isolation

• Ultra Durable Design

• Solid plated ATX 12V 8-pin power connector

• Q-Flash Plus for BIOS updates without CPU, memory, or graphics card

• WIFI EZ-Plug

• Quick and easy Wi-Fi antenna installation

AMD StoreMI Technology

GIGABYTE B550 motherboards support AMD StoreMI, an easy-to-use utility that:

• Accelerates traditional storage to reduce boot and load times
• Combines SSD speed with HDD capacity into a single drive
• Enhances read/write performance to approach SSD-like speeds
• Optimizes overall PC responsiveness from startup to application launch
• Learns usage patterns to quickly access key files
• Delivers SSD performance with HDD capacity at an affordable cost

Cooling Technologies – Smart Fan 6

Smart Fan 6 ensures your system stays cool and quiet:

• High Current Support
• Each fan header supports PWM/DC fans and water cooling pumps

• Up to 24 W (12 V × 2 A) per header with over-current protection

• Precision Control

• Multiple temperature and fan speed control points for detailed fan curves

• Dual Curve Mode

• Slope and Stair modes for different user scenarios

• Fan Stop

• Fans can stop completely below a user-defined temperature

Lighting – RGB FUSION 2.0

RGB FUSION 2.0 provides extensive lighting customization:

• Control onboard RGB and external RGB/Addressable LED strips
• Support for external 5V Addressable LED strips with up to 300 LEDs
• New patterns, adjustable speeds, and enhanced Addressable LED support
• Unified control across motherboards, graphics cards, and peripherals
• Profile sharing and a gaming mode for interactive lighting effects

Audio

• Realtek ALC1220 CODEC
• High Definition Audio
• 2/4/5.1/7.1-channel support (configurable via audio software)

• Back panel line out jack supports DSD audio

• High-End Audio Capacitors

• High resolution, high fidelity audio for realistic sound effects

• Audio Noise Guard

• PCB-level isolation to reduce noise interference

(Graphics and audio channel configuration may vary depending on CPU and software settings.)

Detailed Specifications

General

CPU Support

• AMD Ryzen 5000 G-Series Processors
• AMD Ryzen 5000 Series Processors
• AMD Ryzen 4000 G-Series Processors
• AMD Ryzen 3000 G-Series Processors
• AMD Ryzen 3000 Series Processors

Memory

(Supported memory types, speeds, and module count depend on CPU and configuration. Refer to GIGABYTE’s Memory Support List.)

Onboard Graphics

(Requires AMD processor with Radeon Graphics)

• DisplayPort
• Max resolution: 5120×2880 @ 60 Hz

• DisplayPort 1.4, HDCP 2.3, HDR

• HDMI

• Max resolution: 4096×2160 @ 60 Hz
• HDMI 2.1, HDCP 2.3, HDR

• Native HDMI 2.1 TMDS compatible port

• Maximum shared memory: 16 GB

(Actual graphics support may vary by CPU.)

Audio

LAN & Wireless

• Wired LAN
• Realtek GbE LAN chip
• 1 Gbps / 100 Mbps / 10 Mbps support

• Bandwidth management software for improved latency and low ping in crowded networks

• Wireless Module

• Realtek Wi-Fi RTL8821CE
• Wi-Fi 802.11 a/b/g/n/ac, Dual Band 2.4/5 GHz
• Supports 11ac wireless standard
• Bluetooth 5.0

(Actual wireless data rate may vary by environment and equipment.)

Expansion Slots

• CPU

• 1 × PCI Express x16 slot (PCIEX16)

  • Ryzen 5000/3000 Series: PCIe 4.0 x16 mode
  • Ryzen 5000 G/4000 G/3000 G Series: PCIe 3.0 x16 mode
  • Supports either a graphics card or an NVMe SSD

• Chipset

• 1 × PCI Express x16 slot (PCIEX4), PCIe 3.0, runs at x4
• 1 × PCI Express x1 slot (PCIEX1), PCIe 3.0, runs at x1

If installing only one graphics card, use the PCIEX16 slot.

Storage

• RAID 0, 1, 10 support for NVMe SSDs
• RAID 0, 1, 10 support for SATA drives

USB

• CPU

• 4 × USB 3.2 Gen 1 ports (rear panel)

• Chipset

• 1 × USB Type-C (USB 3.2 Gen 1) via internal header
• 2 × USB 3.2 Gen 1 ports via internal header
• 4 × USB 2.0/1.1 ports (2 rear, 2 via internal header)

Internal I/O Connectors

• 1 × 24-pin ATX main power connector
• 1 × 8-pin ATX 12V power connector
• 1 × CPU fan header
• 2 × system fan headers
• 2 × addressable LED strip headers
• 2 × RGB LED strip headers
• 1 × CPU cooler LED strip / RGB LED strip header
• 2 × M.2 Socket 3 connectors
• 4 × SATA 6 Gb/s connectors
• 1 × front panel header
• 1 × front panel audio header
• 1 × USB Type-C header (USB 3.2 Gen 1)
• 1 × USB 3.2 Gen 1 header
• 1 × USB 2.0/1.1 header
• 1 × Trusted Platform Module (TPM) header (2×6 pin, GC-TPM2.0_S only)
• 1 × serial port header
• 1 × Clear CMOS jumper
• 1 × Q-Flash Plus button

Back Panel Connectors

• 2 × USB 2.0/1.1 ports
• 1 × PS/2 keyboard/mouse port
• 1 × HDMI port*
• 1 × DisplayPort*
• 4 × USB 3.2 Gen 1 ports
• 1 × RJ-45 LAN port
• 2 × antenna connectors
• 3 × audio jacks

*Actual display output support may vary by CPU.

I/O Controller & Monitoring

• iTE I/O Controller Chip

Hardware Monitoring:

• Voltage detection
• Temperature detection
• Fan speed detection
• Overheating warning
• Fan fail warning
• Fan speed control (fan-dependent)

BIOS

• 1 × 128 Mbit flash
• AMI UEFI BIOS (licensed)
• Supports: PnP 1.0a, DMI 2.7, WfM 2.0, SM BIOS 2.7, ACPI 5.0

Q-Flash Technologies:

• Q-Flash Plus
• Q-Flash

Unique Features

• APP Center Support (availability varies by model and specs):
• @BIOS
• EasyTune
• RGB Fusion
• Smart Backup
• System Information Viewer

Bundled Software

• Norton Internet Security (OEM version)
• LAN bandwidth management software

This Gigabyte B550 AMD AM4 micro ATX motherboard delivers a balanced platform with strong VRM design, dual M.2 storage, integrated Wi-Fi and Bluetooth, advanced cooling control, RGB customization, and robust connectivity for modern Ryzen-based systems.