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Rectangular green circuit board with silver ports and black slots

GIGABYTE

GIGABYTE B550M AM4 motherboard 2 in 1 accessory

SKU CH-23V6-K3F2X

Micro-ATX AM4 board with four DDR4 slots up to 128 GB, PCIe 4.0 x16, dual M.2, four SATA and USB 3.2 plus 2.0 ports

  • Supports AMD Ryzen 5000, 4000 G-Series and 3000 Series processors
  • Dual-channel DDR4 memory up to 128 GB across four slots
  • PCIe 4.0 ready x16 slot for high-bandwidth graphics cards
  • M.2 connectors with PCIe 4.0 and 3.0 support for fast NVMe storage
  • Quality audio capacitors and noise isolation for clear sound output

AM4 micro-ATX motherboard

The GIGABYTE B550M is a micro-ATX board built for AMD AM4 socket processors. It accepts Ryzen 3000, 4000 G-Series, 5000 and 5000 G-Series CPUs. Four DDR4 slots support up to 128 GB of dual-channel memory. The board includes one PCIe 4.0 x16 slot, one PCIe x1 slot and two M.2 connectors for NVMe storage. Connectivity covers four SATA ports, four USB 3.2 ports and four USB 2.0 ports. Video output is provided by a single HDMI port.

Builders using Ryzen AM4 CPUs

This board suits builders who need a compact AM4 platform with PCIe 4.0 graphics support and dual M.2 slots. It fits small-form-factor cases and handles mainstream gaming or productivity workloads. Users requiring more than two M.2 drives, additional PCIe expansion slots or newer AM5 socket compatibility should consider other options. The four memory slots offer headroom for 128 GB, but the single HDMI output limits multi-monitor setups without a discrete graphics card.

Storage and memory headroom

Two M.2 slots accept NVMe SSDs running at PCIe 4.0 or 3.0 speeds, giving fast boot and application drives. Four SATA ports add capacity for larger hard drives or SATA SSDs. The four DDR4 slots scale from modest 16 GB kits up to the 128 GB maximum, covering most workstation needs. Memory bandwidth is limited to dual-channel operation, and the single x16 slot means only one graphics card can be installed.

Highlights

  • Supports AMD Ryzen 5000, 4000 G-Series and 3000 Series processors
  • Dual-channel DDR4 memory up to 128 GB across four slots
  • PCIe 4.0 ready x16 slot for high-bandwidth graphics cards
  • M.2 connectors with PCIe 4.0 and 3.0 support for fast NVMe storage
  • Quality audio capacitors and noise isolation for clear sound output

Specifications

No published specifications for this item yet.

Questions about this item

Which Ryzen processor series must I already have for this B550M board to work?

The board supports Ryzen 5000 Series, Ryzen 5000 G-Series, Ryzen 4000 G-Series and Ryzen 3000 Series processors in the AM4 socket.

Will my existing DDR4 memory modules run in dual-channel mode on the four DIMM slots?

Yes, the four DDR4 slots operate in dual-channel and accept ECC or non-ECC unbuffered modules up to 128 GB total.

How can I confirm the board is functioning after assembly without installing a CPU or graphics card?

Use Q-Flash Plus to update the BIOS via the dedicated USB port; the process runs without a CPU, memory or GPU installed.

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