Asus Prime B550 Plus AMD AM4 ATX motherboard


Out of stock

  • ATX Form Factor
  • AMD B550 Chipset
  • AMD AM4 Chipset
  • 4 x Dual-Channel DDR4-4800 (OC)
  • 6 x SATA III, 2 x M.2
  • 1 x PCIe 4.0 x16, 1 x PCIe 3.0 x16
  • 3 x PCIe 3.0 x1 Slots
  • Realtek ALC887 7.1 Channel Audio
  • AMD CrossFireX Support
  • RGB Lighting with Aura Sync & ARGB

10,779 15,890

Out of stock

ASUS Prime B550 Plus AMD AM4 ATX motherboard

ASUS Prime B550 Plus

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, ASUS Prime B550 Plus 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

ASUS Prime B550 Plus 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

ASUS Prime B550 Plus 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

ASUS Prime B550 Plus 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.

SKU: PRIME-B550-PLUS Category: Tags: , , , , , , , ,

Motherboard Brand and Chipset



Chipset AMD B550
CPU Socket AM4

Back Panel I/O

USB 1 x USB-A (USB 3.2 Gen 2×2)
1 x USB-C (USB 3.1/3.2 Gen 2)
4 x USB-A (USB 3.0 / 3.1/3.2 Gen 1)
2 x USB-A (USB 2.0)
Thunderbolt None
Display 1 x DisplayPort 1.2
1 x HDMI 2.1
Audio 1 x S/PDIF
5 x 1/8″ / 3.5 mm
Ethernet / Controller 1 x Gigabit


Memory Slots 4 x 288-Pin
Memory Support DDR4 2133, 2400, 2666, 2800, 3000, 3200, 3333, 3466, 3600, 3733, 3866, 4000, 4133, 4266, 4400, 4600, 4800 MHz
Maximum Capacity 128 GB
Channel Architecture Dual Channel
ECC Support Non-ECC, ECC Unbuffered

Storage Expansion

M.2 1 x M Key 2242, 2260, 2280, 22110 (PCIe 4.0 x4, SATA (Unspecified))
1 x M Key 2242, 2260, 2280, 22110 (PCIe 3.0 x4, SATA (Unspecified))
U.2 None
RAID Support RAID 0, 1, 10

Internal I/O

Expansion Slots 1 x PCIe 4.0 x16
1 x PCIe 3.0 x16 (x4 mode)
3 x PCIe 3.0 x1
USB 1 x 3.0 / 3.1/3.2 Gen 1 Header (Supports 2 USB-A Port)
2 x 2.0 Header (Supports 4 USB-A Port)
Multi-GPU Support 2-Way AMD CrossFireX
Air Cooling 2 x 4-Pin CPU
3 x 4-Pin System
1 x Thermal Sensor
Liquid Cooling 1 x 4-Pin Pump
Power Connectors 1 x 24-Pin Mainboard
1 x 8-Pin ATX
Security TPM Module
LED Header 2 x RGB
Audio None
Add-On 1 x Thunderbolt Card Header

Front Panel I/O

Front Panel I/O AAFP, USB 3.0 / 3.1/3.2 Gen 1, USB 3.1/3.2 Gen 2


Audio Codec Realtek ALC887 (7.1-Channel)


Bluetooth None
Wi-Fi None


OS Compatibility Windows 10
*As of June, 2020: Check with manufacturer for the most up-to-date compatibility


Form Factor ATX
Dimensions 12.01 x 9.61″ / 30.5 x 24.4 cm

Packaging Info

Package Weight 2.945 lb
Box Dimensions (LxWxH) 13 x 10.5 x 2.2″



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