Asus PRIME B550M-K AM4 mATX motherboard

Asus PRIME B550M-K AM4 mATX motherboard

36 months

Technical Specs


Audio Channels 7.1

Network & Communication

Gigabit Ethernet Yes


Onboard Video CPU Dependent Video

Physical Characteristics

Form Factor Micro ATX
Width 243.8 mm
Depth 243.8 mm

I/O Expansions

Number of PCI Express x1 Slots 2
Number of Total Expansion Slots 3
Number of PCI Express x16 Slots 1
Total Number of PCI Express Slots 3


Package Contents
  • Prime B550M-K Desktop Motherboard
  • User's Manual
  • I/O Shield
  • 2 x SATA 6Gb/s cable(s)
  • 1 x Supporting DVD
  • 1 x M.2 SSD screw package(s)
Environmentally Friendly Yes
Environmental Certification RoHS
Brand Compatibility AMD


Maximum Memory Supported 128 GB
Memory Technology DDR4 SDRAM
Number of Memory Slots 4
Memory Form Factor DIMM
Memory Speed Supported 3000 MHz
3200 MHz
3333 MHz
3466 MHz
3600 MHz
3733 MHz
3866 MHz
4000 MHz
2800 MHz
2667 MHz
2133 MHz
2400 MHz
4800 MHz
4600 MHz
4466 MHz
4400 MHz
4266 MHz
4133 MHz

I/O Controller

RAID Levels 10
Controller Type Serial ATA/600
RAID Supported Yes


Number of Network (RJ-45) Ports 1
Total Number of USB Ports 6
Number of USB 3.2 Ports 6

Onboard Interfaces

Number of SATA Interfaces 4
Total Number of Onboard USB Ports 6
Number of Onboard USB 2.0 Ports 4
Onboard S/PDIF Header Yes
Number of M.2 Interfaces 2
Number of Onboard USB 3.2 Ports 2

General Information

Product Type Desktop Motherboard
Manufacturer Part Number PRIME B550M-K
Manufacturer Website Address
Manufacturer ASUS Computer International
Product Model B550M-K
Product Name Prime B550M-K Desktop Motherboard
Product Line Prime
Brand Name Asus

Processor & Chipset

Processor Supported Ryzen 9 PRO
Ryzen 7 PRO
Ryzen 7
Ryzen 5 Pro
Ryzen 5
Ryzen 9
Ryzen 3
Total Processor Supported 1
Processor Socket Socket AM4
Chipset Manufacturer AMD
Chipset Model B550
Brand Asus
Shipping Weight 1.5000kg
Unit Of Measure ea

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