GIGABYTE B550M K,AM4,4xDDR4,PCIe 4.0x16,2xM.2,HDMI,DP

B550M K (rev. 1.0)



AMD B550 Ultra Durable Motherboard with Digital VRM Solution, PCIe 4.0 x16 Slot, Dual PCIe 4.0/3.0 M.2 Connectors, GbE LAN, Smart Fan 5 with FAN STOP

   Supports AMD Ryzen™ 5000 Series/ Ryzen™ 5000 G-Series/ Ryzen™ 4000 G-Series and Ryzen™ 3000 Series Processors
   Dual Channel ECC/ Non-ECC Unbuffered DDR4, 4 DIMMs
   Ultra Durable™ PCIe 4.0 Ready x16 Slot
   Dual Ultra-Fast NVMe PCIe 4.0/3.0 M.2 Connectors
   High Quality Audio Capacitors and Audio Noise Guard for Ultimate Audio Quality
   GbE LAN with Bandwidth Management
   Rear DisplayPort and HDMI for Multi-display Support
   Smart Fan 5 Features Multiple Temperature Sensors, Hybrid Fan Headers with FAN STOP
   Anti-Sulfur Resistors Design



CPU

   AMD Socket AM4, support for: AMD Ryzen™ 5000 Series/ Ryzen™ 5000 G-Series/ Ryzen™ 4000 G-Series and Ryzen™ 3000 Series Processors

(Please refer "CPU Support List" for more information.)
Chipset

   AMD B550

Memory

   4 x DDR4 DIMM sockets supporting up to 128 GB (32 GB single DIMM capacity) of system memory
   Support for DDR4 4733(O.C.) / 4600(O.C.) / 4400(O.C.) / 4266(O.C.) / 4133(O.C.) / 4000(O.C.) / 3866(O.C.) / 3733(O.C.) / 3600(O.C.) / 3466(O.C) / 3400(O.C.) / 3200 / 2933 / 2667 / 2400 / 2133 MHz memory modules
   Dual channel memory architecture
   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
   Support for Extreme Memory Profile (XMP) memory modules

(Please refer "Memory Support List" for more information.)
Onboard Graphics
Integrated Graphics Processor:

   1 x DisplayPort, supporting a maximum resolution of 5120x2880@60 Hz
   * Support for DisplayPort 1.4 version, HDCP 2.3, and HDR.
   1 x HDMI port, supporting a maximum resolution of 4096x2160@60 Hz
   * Support for HDMI 2.1 version, HDCP 2.3, and HDR.

Maximum shared memory of 16 GB
Audio

   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.

LAN

   Realtek® GbE LAN chip (1 Gbps/100 Mbps)

Expansion Slots
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

1 x PCI Express x1 slot, integrated in the Chipset:

   Supporting PCIe 3.0 x1 mode

Storage Interface
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

4 x SATA 6Gb/s connectors, integrated in the Chipset:

   Support for RAID 0, RAID 1, and RAID 10

USB
CPU:

   4 x USB 3.2 Gen 1 ports on the back panel

Chipset:

   2 x USB 3.2 Gen 1 ports available through the internal USB header
   6 x USB 2.0/1.1 ports (4 ports on the back panel, 2 ports available through the internal USB header)

Internal I/O Connectors

   1 x 24-pin ATX main power connector
   1 x 8-pin ATX 12V power connector
   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 USB 3.2 Gen 1 header
   1 x USB 2.0/1.1 header
   1 x Trusted Platform Module (TPM) header (2x6 pin, for the GC-TPM2.0_S module only)
   1 x Clear CMOS jumper

Back Panel Connectors

   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

I/O Controller

   iTE® I/O Controller Chip

H/W Monitoring

   Voltage detection
   Temperature detection
   Fan speed detection
   Fan fail warning
   Fan speed control
   * Whether the fan speed control function is supported will depend on the cooler you install.

BIOS

   1 x 128 Mbit flash
   Use of licensed AMI UEFI BIOS
   PnP 1.0a, DMI 2.7, WfM 2.0, SM BIOS 2.7, ACPI 5.0

Unique 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

Bundled Software

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

Operating System

   Support for Windows 11 64-bit
   Support for Windows 10 64-bit

Form Factor

   Micro ATX Form Factor; 24.4cm x 24.4cm

Remark

   Due to different Linux support condition provided by chipset vendors, please download Linux driver from chipset vendors' website or 3rd party website.
   Most hardware/software vendors may no longer offer drivers to support Win9X/ME/2000/XP. If drivers are available from the vendors, we will update them on the GIGABYTE website.