Gigabyte B550M K AMD AM4 Micro ATX Motherboard

The Gigabyte B550M K is a Micro ATX motherboard designed for AMD AM4 processors, offering a balance of performance, connectivity, and durability. Here's a detailed overview of its specifications:

CPU & Chipset

• Socket: AMD AM4

• Chipset: AMD B550

• Supported Processors: AMD Ryzen™ 5000 Series, Ryzen™ 5000 G-Series, Ryzen™ 4000 G-Series, and Ryzen™ 3000 Series processors 

Memory

• Slots: 4 x DDR4 DIMM sockets

• Capacity: Up to 128 GB (32 GB per DIMM)

• Supported Memory Types: DDR4 2133/2400/2667/2933/3200 MHz (native); up to 4733 MHz (OC)

• Dual Channel Support: Yes

• ECC Support: Supports ECC and non-ECC unbuffered memory (ECC function depends on CPU support) 

Expansion Slots

• 1 x PCIe 4.0 x16: (Operates at x16 mode with Ryzen 5000/3000 Series CPUs; PCIe 3.0 x16 with Ryzen 5000 G-Series/4000 G-Series CPUs)

• 1 x PCIe 3.0 x1 

Storage

• M.2 Slots:

  • 1 x M.2 (2280) PCIe 4.0/3.0 x4 & SATA mode (from CPU)

  • 1 x M.2 (2280) PCIe 3.0 x2 (from chipset)

• SATA: 4 x SATA 6Gb/s ports 

Rear I/O Ports

• USB Ports:

  • 4 x USB 3.2 Gen 1 Type-A

  • 4 x USB 2.0

• Video Outputs:

  • 1 x HDMI 2.1 (supports 4K@60Hz, HDCP 2.3)

  • 1 x DisplayPort

• Audio:

  • 3 x 3.5mm audio jacks (line-in, line-out, mic-in)

• Networking:

  • 1 x RJ-45 port (Realtek GbE LAN)

• Others:

  • 1 x PS/2 keyboard/mouse combo port 

Internal Connectors

• USB Headers:

  • 2 x USB 3.2 Gen 1 headers (supporting 4 ports)

  • 2 x USB 2.0 headers (supporting 4 ports)

• Fan Headers:

  • 2 x system fan headers

• Power Connectors:

  • 1 x 24-pin ATX main power connector

  • 1 x 8-pin ATX 12V power connector 

Audio

• Audio Codec: Realtek High Definition Audio

• Features:

  • High-quality audio capacitors

  • Audio Noise Guard 

Networking

• LAN: Realtek GbE LAN with bandwidth management 

Cooling & Durability

• Smart Fan 5: Features multiple temperature sensors and hybrid fan headers with FAN STOP

• Design: Ultra Durable™ components with anti-sulfur resistors and solid pin power connectors

Form Factor

• Size: Micro ATX (24.4 cm x 24.4 cm)

Additional Resources

For more detailed information, refer to the official Gigabyte product page and the user manual. If you need help with compatible components or building a system with this motherboard, feel free to ask!