Gigabyte B550M DS3H AC R2 DDR4 AM4 M-ATX Motherboard Black
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Gigabyte B550M DS3H AC R2 — Proven AM4 Value with Integrated Wi-Fi AC & PCIe 4.0
A highly acclaimed Micro-ATX motherboard on AMD B550 built for AMD Ryzen 5000, 4000 G-Series, and 3000 Series processors on Socket AM4. Features a 5+3 phase pure digital VRM with low RDS(on) MOSFETs, integrated Dual Band Wi-Fi AC plus Bluetooth, PCIe 4.0 x16 graphics, dual M.2 NVMe slots, and four DDR4 DIMMs supporting up to 128 GB and 4733+ MHz.
Board Architecture Map
Component placement and expansion zones across the PCB
AMD AM4 PGA1331 Socket — Centre
Fully supports AMD Ryzen 5000, 4000 G-Series, and 3000 Series desktop processors.
5+3 Phase Pure Digital VRM — Top & Left
Digital PWM controller and low RDS(on) MOSFETs provide steady voltage regulation to multi-core Ryzen CPUs.
4 × DDR4 DIMM Slots — Right
Dual-channel memory supporting up to 128 GB total system memory with speeds up to 4733+ MHz (XMP).
PCIe 4.0 x16 Primary Graphics Slot — Centre
Direct PCIe 4.0 connection providing double the bandwidth of Gen3 for modern gaming graphics cards.
Dual M.2 Sockets (PCIe 4.0 + PCIe 3.0) — Mid PCB
Ultra-fast primary PCIe 4.0 x4 M.2 slot for boot drives, paired with secondary PCIe 3.0 x2 M.2 slot for game storage.
Integrated Dual Band Wi-Fi AC Module — Top Left
Built-in wireless networking supporting dual-band 2.4GHz & 5GHz Wi-Fi 5 (802.11ac) plus Bluetooth connectivity.
Power Delivery & Reliability
Pure digital power design and reliable multi-core voltage stability5+3 Phase Pure Digital VRM
Delivers precise and clean electrical power to Ryzen processors even under continuous gaming and multitasking loads.
Built-in Dual Band Wi-Fi AC
Features integrated 802.11ac wireless connectivity with external high-gain antennas for flexible placement without running LAN cables.
PCIe 4.0 x16 Graphics Support
Full-bandwidth Gen4 slot maximizes data flow between your CPU and high-performance graphics card.
Q-Flash Plus BIOS Button
Update your BIOS firmware directly from a USB stick without installing a CPU, memory, or graphics card.
Bandwidth & Lane Hierarchy
Interface speed rating & capability relative to modern motherboard standardsRear I/O Bay
Port inventory: Everything on the panel, counted
Will It Fit Your Build?
Check these before you add to cartProcessor
Supports 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 with XMP.
Graphics
PCIe 4.0 x16 slot compatible with all modern dedicated graphics cards.
Storage
2 × M.2 sockets (1x PCIe 4.0 + 1x PCIe 3.0) plus 4 × SATA 6 Gb/s ports.
Case Clearance
Standard Micro-ATX form factor (24.4 cm x 24.4 cm) — fits Mini-Tower and Mid-Tower cases.
Power Supply
Requires standard 24-pin ATX power and a single 8-pin CPU 12V connector.
Full Specification Sheet
Gigabyte B550M DS3H AC R2| Model | Gigabyte B550M DS3H AC R2 Motherboard |
| CPU Socket | AMD Socket AM4 (PGA 1331) |
| Supported Processors | AMD Ryzen 5000 / 4000 G-Series / 3000 Series Processors |
| Chipset | AMD B550 Chipset |
| Form Factor | Micro-ATX (24.4 cm x 24.4 cm) |
| Power Architecture | 5+3 Phase Pure Digital VRM with Low RDS(on) MOSFETs |
| Memory Architecture | 4 × DDR4 DIMM, Dual Channel, up to 128 GB, XMP Support |
| Memory Frequency | Up to 4733+ MHz (O.C.) |
| Primary PCIe Slot | 1 × PCIe 4.0 x16 slot (requires Ryzen 5000/3000 CPU) |
| Secondary PCIe Slot | 1 × PCIe 3.0 x1 slot |
| M.2 NVMe Sockets | 2 × M.2 Sockets (1× PCIe 4.0 x4 + 1× PCIe 3.0 x2) |
| SATA Storage | 4 × SATA 6 Gb/s connectors with RAID 0/1/10 support |
| Wireless Connectivity | Dual Band Wi-Fi AC (802.11ac) + Bluetooth |
| Wired Ethernet | Realtek GbE LAN (1 Gbps / 100 Mbps) |
| Display Outputs | 1 × HDMI 2.1 + 1 × DVI-D |
| USB Connectivity | 4 × USB 3.2 Gen 1 Type-A + 2 × USB 2.0 (Rear panel) |
| Audio Codec | Realtek HD Audio + Audio Noise Guard with Path Separation |
| BIOS Feature | Q-Flash Plus button for CPU-free BIOS updates |
