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Learn more about GIGABYTE B550M K

Model

Brand

GIGABYTE

Model

B550M K

Supported CPU

CPU Socket Type

AM4

CPU Type

Ryzen 3000 Series / Ryzen 4000G Series / Ryzen 5000 Series / Ryzen 5000G Series

Chipsets

Chipset

AMD B550

Memory

Number of Memory Slots

4x288pin (DDR4)

Memory Standard

DDR4 3200

Maximum Memory Supported

128GB

Channel Supported

Dual Channel

ECC Supported

Support for ECC Un-buffered DIMM 1Rx8/2Rx8 memory modules*
* ECC memory (ECC mode) support varies by CPU
Support for non-ECC Un-buffered DIMM 1Rx8/2Rx8/1Rx16 memory modules

Buffer Supported

Un-buffered

Memory Feature

Support for Extreme Memory Profile (XMP) memory modules

Expansion Slots

PCI Express 4.0 x16

1 x PCI Express x16 slot, integrated in the CPU:
AMD Ryzen 5000 Series/3000 Series Processors support PCIe 4.0 x16 mode
AMD Ryzen 5000 G-Series/4000 G-Series Processors support PCIe 3.0 x16 mode

PCI Express x1

1 x PCI Express x1 slot, integrated in the Chipset:
Supporting PCIe 3.0 x1 mode

Storage Devices

SATA 6Gb/s

4 x SATA 6Gb/s

M.2

1 x M.2 connector (M2A_CPU), integrated in the CPU, supporting Socket 3, M key, type 2280 SSDs:
AMD Ryzen 5000 Series/3000 Series Processors support SATA and PCIe 4.0 x4/x2 SSDs
AMD Ryzen 5000 G-Series/4000 G-Series Processors support SATA and PCIe 3.0 x4/x2 SSDs

1 x M.2 connector (M2B_SB), integrated in the Chipset, supporting Socket 3, M key, type 2280 SSDs:
Supporting PCIe 3.0 x2 SSDs

Onboard Audio

Audio Channels

Realtek Audio CODEC
High Definition Audio
2/4/5.1/7.1-channel
* You can change the functionality of an audio jack using the audio software. To configure 7.1-channel audio, access the audio software for audio settings.

Onboard LAN

LAN Chipset

Realtek GbE LAN chip

Max LAN Speed

1Gbps

Rear Panel Ports

Back I/O Ports

1 x PS/2 keyboard/mouse port
1 x DisplayPort
1 x HDMI port
4 x USB 3.2 Gen 1 ports
4 x USB 2.0/1.1 ports
1 x RJ-45 port
3 x audio jacks

Internal I/O Connectors

Onboard USB

1 x USB 3.2 Gen 1 header
1 x USB 2.0/1.1 header

Other Connectors

1 x CPU fan header
1 x system fan header
2 x M.2 Socket 3 connectors
4 x SATA 6Gb/s connectors
1 x front panel header
1 x front panel audio header
1 x Trusted Platform Module (TPM) header (2×6 pin, for the GC-TPM2.0_S module only)
1 x Clear CMOS jumper

Physical Spec

Form Factor

Micro ATX

Dimensions (W x L)

9.6″ x 9.6″

Power Pin

1 x 24-pin ATX main power connector
1 x 8-pin ATX 12V power connector

Windows 11 Compatibility

Windows 11

Supported

Features

Features

Support for APP Center
* Available applications in APP Center may vary by motherboard model. Supported functions of each application may also vary depending on motherboard specifications.
@BIOS
EasyTune
Smart Backup
System Information Viewer
Support for Q-Flash
Support for Xpress Install