ASUS PRIME B550M-K AMD B550 Socket AM4 micro ATX

AMD B550 (Ryzen AM4) micro ATX motherboard with dual M.2, PCIe 4.0, 1 Gb Ethernet, HDMI/D-Sub/DVI, SATA 6 Gbps, USB 3.2 Gen 2 Type-A

Key Features

• AMD AM4 socket: Ready for 3rd Gen AMD Ryzen™ processors
• Comprehensive cooling: PCH heatsink and Fan Xpert 2+
• Ultrafast connectivity: Dual M.2, PCIe 4.0, 1 Gb Ethernet, USB 3.2 Gen 2 Type-A
• 5X Protection III: Multiple hardware safeguards for all-around system protection

Reasons To Buy

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.

Flexible Cooling Controls

Fan Xpert 2+ software provides comprehensive control over system fans. Auto-Tuning mode intelligently configures all parameters with a single click. There's also an Extreme Quiet mode that reduces chassis fan speeds to below the default minimum to keep your system whisper-quiet when performing light tasks. Fans can also be controlled via the UEFI BIOS.

Precise Digital Power Control

The Digi+ voltage-regulator module (VRM) delivers real-time control over voltage droop, automatically switching frequency and power-efficiency settings. It also allows you to fine-tune your CPU for ultimate stability and performance.

Description

ASUS Prime series is expertly engineered to unleash the full potential of 3rd Generation 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.

Tune It Your Way
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 you to tweak performance settings to perfectly match the way you work – maximizing your productivity.

Cooler by Design
Prime B550M-K is engineered with an array of hybrid fan headers and features comprehensive cooling controls that are configurable via Fan Xpert 2+ software or via the UEFI BIOS, ensuring your rig stays cool and stable under intense workloads.

Build on a Solid Foundation
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 transfer options.

Little Things Make a Big Difference
Prime B550 series adds the nuanced details that improve every experience, from exclusive codecs that provide pristine audio quality to intuitive interface 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.

Specifications

Internal I/O
Number of M.2 (M) slots	2
Supported storage drive interfaces	M.2, SATA
USB 2.0 connectors	2
USB 3.2 Gen 1 (3.1 Gen 1) connectors	1
ATX Power connector (24-pin)	Yes
Technical details
Motherboard chipset family	AMD
Motherboard chipset	AMD B550
Motherboard form factor	micro ATX
Performance
Windows operating systems supported	Windows 10
Motherboard chipset family	AMD
Motherboard chipset	AMD B550
Motherboard form factor	micro ATX
Processor
Processor manufacturer	AMD
Compatible processor series	AMD Ryzen 3000 Series
Processor socket	Socket AM4
Memory
Number of memory slots	4
Memory slots type	DIMM
Supported memory types	DDR4-SDRAM
Supported memory clock speeds	2133,2400,2666,2800,3000,3200,3333,3466,3600,3733,3866,4000,4133,4266,4400,4600 MHz
Maximum internal memory	128 GB
Storage controllers
Supported storage drive interfaces	M.2, SATA
Rear panel I/O ports
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	4
USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity	0
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity	2
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity	0
USB 2.0 ports quantity	0
PS/2 ports quantity	1
HDMI ports quantity	1
Ethernet LAN (RJ-45) ports	1
DVI-D ports quantity	1
Network
Ethernet LAN	Yes
Wi-Fi	No
LAN controller	Realtek RTL8111H
Features
Windows operating systems supported	Windows 10
Motherboard chipset family	AMD
Motherboard chipset	AMD B550
Motherboard form factor	micro ATX
Harmonized System (HS) code	84733020
Expansion slots
Number of M.2 (M) slots	2
PCI Express x1 (Gen 3.x) slots	2
PCI Express x16 (Gen 4.x) slots	1
BIOS
BIOS type	UEFI AMI
BIOS memory size	256 Mbit
Software
Windows operating systems supported	Windows 10
Logistics data
Harmonized System (HS) code	84733020
Weight & dimensions
Height	51 mm
Weight	785 g
Width	244 mm
Depth	244 mm
Other features
Height	51 mm
Weight	785 g