Description

ManufacturerASUS Computer International
Manufacturer Part NumberPRIME B550-PLUS
Manufacturer Website Addresshttp://www.asus.com
Brand NameAsus
Product LinePrime
Product ModelB550-PLUS
Product NamePrime B550-PLUS Desktop Motherboard
Marketing InformationAMD B550 (Ryzen AM4) ATX motherboard with dual M.2, PCIe 4.0, 1 Gb Ethernet, DisplayPort/HDMI, SATA 6 Gbps, USB 3.2 Gen 2 Type-A and Type-C, and Aura Sync RGB headers support

  • AMD AM4 socket: Ready for 3rd Gen AMD Ryzen™ Processors
  • Ultrafast connectivity: Dual M.2, PCIe 4.0, 1 Gb Ethernet, USB 3.2 Gen 2 Type-A and Type-C
  • Comprehensive cooling: VRM heatsinks, PCH heatsink, and Fan Xpert 4
  • Aura Sync RGB: Onboard addressable Gen 2 header for RGB LED strips, easily synced with Aura Sync-capable hardware

PRIME
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.

Cool to the Core

Prime B550 series is engineered with multiple onboard heatsinks and an array of hybrid fan headers to ensure your rig stays cool and stable under intense workloads.

VRM Heatsink and Thermal Pads

Two massive VRM heatsinks with underneath thermal pads improve heat transfer from the MOSFETs and chokes for better cooling performance.

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.

PCIe 4.0 M.2 (up to 64 Gbps)

Achieve Speed With Onboard M.2

PCIe 4.0 M.2 Slot supports up to 22110 and provide NVMe SSD RAID support for an incredible performance boost. Create a RAID configuration with up to 64Gbps PCIe 4.0 storage device to enjoy the fastest data-transfer speeds on the 3rd Generation AMD Ryzen platform.

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 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

Separates analog/digital signal domains, significantly reducing multi-lateral interference.

Separate Layer for Left and Right Tracks

Ensures minimal crosstalk between audio paths.

Premium Japanese Capacitors

Premium parts provide an immersive sound signature, with exceptional fidelity.

Product TypeDesktop Motherboard
Processor & Chipset
Chipset ManufacturerAMD
Chipset ModelB550
Total Processor Supported1
Processor SocketSocket AM4
Processor Supported
  • Ryzen 3
  • Ryzen 5
  • Ryzen 5 Pro
  • Ryzen 7
  • Ryzen 7 PRO
  • Ryzen 9
  • Ryzen 9 PRO
Memory
Number of Memory Slots4
Memory Form Factor
  • DIMM
  • UDIMM
Maximum Memory Supported128 GB
Memory TechnologyDDR4 SDRAM
Memory Speed Supported
  • 2133 MHz
  • 2400 MHz
  • 2667 MHz
  • 2800 MHz
  • 3000 MHz
  • 3200 MHz
  • 3333 MHz
  • 3466 MHz
  • 3600 MHz
  • 3733 MHz
  • 3866 MHz
  • 4000 MHz
  • 4133 MHz
  • 4266 MHz
  • 4400 MHz
  • 4466 MHz
  • 4600 MHz
  • 4800 MHz
I/O Controller
Controller TypeSerial ATA/600
RAID SupportedYes
RAID Levels
  • 0
  • 1
  • 10
Video
Onboard VideoCPU Dependent Video
Audio
Audio Channels7.1
Network & Communication
Gigabit EthernetYes
I/O Expansions
Total Number of Expansion Slots5.0
Total Number of PCI Express Slots5
Number of PCI Express x1 Slots3
Number of PCI Express x16 Slots2
Interfaces/Ports
Total Number of USB Ports8
Number of USB 2.0 Ports2
Number of USB 3.2 Ports6
S/PDIFYes
HDMIYes
DisplayPortYes
Number of Network (RJ-45) Ports1
Onboard Interfaces
Number of SATA Interfaces6
Number of M.2 Interfaces2
Total Number of Onboard USB Ports6
Number of Onboard USB 2.0 Ports4
Number of Onboard USB 3.2 Ports2
Onboard S/PDIF HeaderYes
Physical Characteristics
Form FactorATX
Width12″ (304.80 mm)
Depth9.60″ (243.84 mm)
Miscellaneous
Package Contents
  • Prime B550-PLUS 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)
Brand CompatibilityAMD
Country of OriginChina
Environmentally FriendlyYes
Environmental ComplianceRestriction of Hazardous Substances (RoHS)
Warranty
Limited Warranty3 Year