ASROCK 

ASRock MB B550D4U B550 AM4 S1331 32GB micro-ATX Retail

Mfg Part Number:  B550D4U  
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Price: $482.86 + Free Shipping
Quantity:
More to Come
Last Updated: Jul 20, 2025
No Sales Tax except these states
, PO and Wire.
Main Specification
General Information
Manufacturer ASRock Rack Inc
Manufacturer Part Number B550D4U
Manufacturer Website Address https://www.asrockrack.com/index.asp
Brand Name ASRock Rack
Product Model B550D4U
Product Name B550D4U Server Motherboard
Product Type Server Motherboard
Processor & Chipset
Chipset Manufacturer AMD
Chipset Model B550
Total Processor Supported 1
Processor Socket Socket AM4
Processor Supported Ryzen 5
Processor Supported Ryzen 3
Memory
Number of Memory Slots 4
Memory Form Factor UDIMM
Memory Form Factor DIMM
Maximum Memory Supported 32 GB
Memory Technology DDR4 SDRAM
Memory Speed Supported 2666 MHz
I/O Controller
Controller Type Serial ATA/600
RAID Supported Yes
RAID Levels 1
RAID Levels 10
RAID Levels 0
Video
Onboard Video CPU Dependent Video
Graphics Controller Model AST2500
Network & Communication
Gigabit Ethernet Yes
I/O Expansions
Total Number of Expansion Slots 2
PCI Express Standard PCI Express 4.0
Total Number of PCI Express Slots 2
Number of PCI Express x4 Slots 1
Number of PCI Express x16 Slots 1
Interfaces/Ports
Total Number of USB Ports 2
Number of USB 3.2 Gen 2 Type-A Ports 2
VGA Yes
HDMI Yes
Number of Network (RJ-45) Ports 3
Onboard Interfaces
Number of SATA Interfaces 6
Number of M.2 Interfaces 2
Total Number of Onboard USB Ports 2
Physical Characteristics
Form Factor Micro ATX
Width 9.6"
Depth 9.6"
Miscellaneous
Environmental Compliance Restriction of Hazardous Substances (RoHS)
Environmental Compliance Waste Electrical and Electronic Equipment Directive (WEEE)
Environmental Compliance Taiwan Restriction of Hazardous Substances (Taiwan RoHS)
Environmental Compliance China Restriction of Hazardous Substances (China RoHS)
WARNING:: The plastic used in cable products can expose you to lead and lead components, chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to www.P65Warnings.ca.gov
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