ASUS

ASUS PRIME B550M-K ARGB AMD B550 Socket AM4 micro ATX

SKU
90MB1GC0-M0EAY0
In Stock
AMD B550 (Ryzen™ AM4) mATX motherboard with dual M.2 slots, PCIe 4.0, Realtek 1Gb Ethernet, DisplayPort/HDMI™, SATA 6 Gbps, rear USB 3.2 Gen 1 ports, front USB 3.2 Gen 1 Type-C® and Aura Sync
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ASUS PRIME series is expertly engineered to unleash the full potential of 5000 Series/ 5000 G-Series/ 4000 G-Series/ 3000 Series AMD Ryzen platform. Boasting a robust power design, comprehensive cooling solutions and intelligent tuning options, PRIME B550 series motherboards provide daily users and DIY PC builders a range of performance tuning options via intuitive software and firmware features.

FLEXIBILITY

Comprehensive controls form the foundation of the ASUS PRIME series. The PRIME B550 motherboard packs flexible tools to tune every aspect of your system, enabling performance tweaks to perfectly match the way you work to maximize productivity.

All-Around Energy Efficiency

With the Energy Processing Unit (EPU), you‘ll enjoy system-wide power savings.The EPU automatically optimizes power consumption and maximizes savings with Away mode.

COOLING

PRIME B550 series are engineered with an array of hybrid fan headers to ensure your rig stays cool and stable under intense workloads.

Cooler by Design

PRIME B550 series feature comprehensive cooling controls that are configurable via Fan Xpert 2+ software or via the UEFI BIOS.

Multiple Temperature Sources

Each header can dynamically reference three thermal sensors. Fan Xpert 2+ allows you to map the temperature of supported ASUS graphics cards to optimize cooling for GPU- and CPU-intensive tasks.

PERFORMANCE

PRIME B550 motherboard provides all the fundamentals to boost daily productivity, so your system will be ready for action with stable power, intuitive cooling and flexible data transfer options.

Dual M.2 Slots (up to 64 Gbps)

PRIME B550M-K ARGB offers a total of two M.2 slots, one of which supports data-transfer speeds of up to 64Gbps via PCIe 4.0, enabling quicker boot-up and app load times with OS or application drives.

FLEXIBILITY

Comprehensive controls form the foundation of the ASUS PRIME series. The PRIME B550 motherboard packs flexible tools to tune every aspect of your system, enabling performance tweaks to perfectly match the way you work to maximize productivity.

Intelligent Control

All-Around Energy Efficiency

With the Energy Processing Unit (EPU), you‘ll enjoy system-wide power savings.The EPU automatically optimizes power consumption and maximizes savings with Away mode.

COOLING

PRIME B550 series are engineered with an array of hybrid fan headers to ensure your rig stays cool and stable under intense workloads.

Cooler by Design

PRIME B550 series feature comprehensive cooling controls that are configurable via Fan Xpert 2+ software or via the UEFI BIOS.

PRIME B550 series are engineered with an array of hybrid fan headers to ensure your rig stays cool and stable under intense workloads.

Multiple Temperature Sources

Each header can dynamically reference three thermal sensors. Fan Xpert 2+ allows you to map the temperature of supported ASUS graphics cards to optimize cooling for GPU- and CPU-intensive tasks.

PERFORMANCE

PRIME B550 motherboard provides all the fundamentals to boost daily productivity, so your system will be ready for action with stable power, intuitive cooling and flexible data transfer options.

Storage

Dual M.2 Slots (up to 64 Gbps)

PRIME B550M-K ARGB offers a total of two M.2 slots, one of which supports data-transfer speeds of up to 64Gbps* via PCIe 4.0, enabling quicker boot-up and app load times with OS or application drives.

CUSTOMIZATION

The PRIME B550 series adds the nuanced details that improve every experience, from exclusive codecs that provide pristine audio quality to intuitive RGB lighting controls that let you customize your system to create a uniquely personal look.

Outstanding Audio

Combined onboard features deliver elevated audio

Intelligent design and premium hardware create audio quality unlike anything you’ve ever experienced.

Audio Shielding

Audio shielding ensures precision analog/digital separation and greatly reduced multi-lateral interference.

Dedicated Audio PCB Layers

Separate layers for left and right tracks ensures both channels deliver consistent, equal quality.

Premium Audio Capacitors

Provides warm, natural, and immersive sound with exceptional clarity and fidelity.
Internal I/O
Number of M.2 (M) slots2
Front panel connectorYes
12V power connectorYes
Supported storage drive interfacesM.2
USB 2.0 connectors2
USB 3.2 Gen 1 (3.1 Gen 1) connectors2
TPM connectorYes
S/PDIF out connectorYes
Number of SATA III connectors4
Number of COM connectors1
Number of chassis fan connectors2
Front panel audio connectorYes
CPU fan connectorYes
ATX Power connector (24-pin)Yes
RGB LED pin headerYes
Technical details
Motherboard chipset familyAMD
Motherboard chipsetAMD B550
HDMI version2.1
Motherboard form factormicro ATX
Component forPC
Audio
Audio output channels7.1 channels
Performance
Supported storage drive typesHDD & SSD
Windows operating systems supportedWindows 10 x64, Windows 11
Motherboard chipset familyAMD
Motherboard chipsetAMD B550
RAID levels0, 1, 10
Audio output channels7.1 channels
Motherboard form factormicro ATX
Component forPC
Processor
Processor manufacturerAMD
Processor socketSocket AM4
Memory
Number of memory slots2
Memory slots typeDIMM
Supported memory typesDDR4-SDRAM
Memory channelsDual-channel
Supported memory clock speeds2133,2400,2666,2800,2933,3000,3200,3333,3400,3466,3600,3733,3866,4000,4133,4200,4266,4333,4400,4466,4600,4866,5100 MHz
Maximum internal memory64 GB
Unbuffered memoryYes
Storage controllers
Supported storage drive typesHDD & SSD
Supported storage drive interfacesM.2
RAID levels0, 1, 10
RAID supportYes
Rear panel I/O ports
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity4
DisplayPort version1.4
USB 2.0 ports quantity2
PS/2 ports quantity1
Microphone inYes
Headphone outputs1
HDMI version2.1
HDMI ports quantity1
Ethernet LAN (RJ-45) ports1
DisplayPorts quantity1
Line-inYes
Network
Ethernet LANYes
Wake-on-LAN readyYes
Ethernet interface typeGigabit Ethernet
Features
Windows operating systems supportedWindows 10 x64, Windows 11
Motherboard chipset familyAMD
Motherboard chipsetAMD B550
Audio output channels7.1 channels
Motherboard form factormicro ATX
Component forPC
Expansion slots
Number of M.2 (M) slots2
PCI Express x1 (Gen 3.x) slots1
PCI Express x16 (Gen 3.x) slots1
PCI Express x16 (Gen 4.x) slots1
BIOS
BIOS typeEFI AMI
Clear CMOS jumperYes
BIOS memory size128 Mbit
Packaging data
Package width260 mm
Package depth270 mm
Package height515 mm
Package weight960 g
Software
Windows operating systems supportedWindows 10 x64, Windows 11
Weight & dimensions
Height36.5 mm
Package width260 mm
Package depth270 mm
Package height515 mm
Package weight960 g
Weight460 g
Width244 mm
Depth221 mm
Packaging content
Cables includedSATA
Other features
Height36.5 mm
Package width260 mm
Package depth270 mm
Package height515 mm
Package weight960 g
Weight460 g