ASUS Prime B550 Plus AM4 ATX Motherboard

BH #ASPB550P • MFR #PRIME B550-PLUS
ASUS Prime B550 Plus AM4 ATX Motherboard
Key Features
  • ATX Form Factor
  • AMD B550 Chipset
  • AMD AM4 Chipset
  • 4 x Dual-Channel DDR4-4800 (OC)
Complement that AMD build with the Prime B550 Plus AM4 ATX Motherboard from ASUS. Designed for the AM4 socket and using the B550 chipset, this motherboard can support up to 128GB of DDR4 RAM with frequencies up to 3200 MHz or, if overclocking, up to 4800 MHz. Users can also connect up to six SATA III drives and up to two M.2 drives ranging from 2242 to 22110. One of these slots benefits 3rd Gen AMD processors with PCIe 4.0 x4 performance, while the other slot features PCIe 3.0 x4 speeds. The Prime B550 Plus also supports RAID 0, 1, 10, and 5 for more resilient data storage, and CrossFireX allows for multiple-GPU setups. In addition to one M.2 PCIe 4.0 x16 slot and one M.2 PCIe 3.0 x16 slot, users have access to three PCIe 3.0 x1 slots.
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ASUS B550-PLUS Overview

  • 1Description
  • 2All-Around Energy Efficiency
  • 3Flexible Cooling Controls
  • 4Digital Power Control
  • 5VRM Heatsink and Thermal Pads
  • 6Cooler by Design
  • 7Connectivity
  • 8Onboard M.2
  • 9Optimized for Audio
  • 10Aura Sync
  • 11Addressable Gen 2 RGB Header
  • 12Armoury Crate

Complement that AMD build with the Prime B550 Plus AM4 ATX Motherboard from ASUS. Designed for the AM4 socket and using the B550 chipset, this motherboard can support up to 128GB of DDR4 RAM with frequencies up to 3200 MHz or, if overclocking, up to 4800 MHz. Users can also connect up to six SATA III drives and up to two M.2 drives ranging from 2242 to 22110. One of these slots benefits 3rd Gen AMD processors with PCIe 4.0 x4 performance, while the other slot features PCIe 3.0 x4 speeds. The Prime B550 Plus also supports RAID 0, 1, 10, and 5 for more resilient data storage, and CrossFireX allows for multiple-GPU setups. In addition to one M.2 PCIe 4.0 x16 slot and one M.2 PCIe 3.0 x16 slot, users have access to three PCIe 3.0 x1 slots.

In addition to water- and air-cooling components, the B550 Plus's internal threaders offer support for two USB 3.2 Gen 1 and four USB 2.0 Type-A ports, as well as a Thunderbolt 3 connection and a TPM for BIOS integrity. The back I/O panel also sports single USB 3.2 Gen 2 Type-A and Type-C ports, alongside four Gen 1 Type-A ports. Two USB 2.0 ports also provide connections for a mouse and keyboard, while monitors can be connected via the HDMI or DisplayPort outputs. Five 3.5mm ports are present for audio, alongside an S/PDIF port. Audio is handled by the Realtek ALC887 7.1 Channel Audio codec and takes advantage of shielding and separate layers for the left- and right-side channels, reducing common audio bugaboos such as interference and crosstalk. An ARGB header is present, and the inclusion of ASUS Aura sync allows users to not only match the Prime B550 to their current setup, but also offers central control for compatible RGB components. This motherboard comes with two SATA III cables, as well as a support DVD and a screw package for mounting M.2 SSDs. The ASUS Prime B550 Plus is compatible with the Windows 10 64-bit operating system.

All-Around Energy Efficiency
With the Energy Processing Unit, or EPU, you'll enjoy system-wide power savings. The EPU automatically optimizes power consumption and maximizes savings with an away mode.
Flexible Cooling Controls
Fan Xpert 4 software provides comprehensive control over fans, water pumps, and all-in-one or AiO coolers. Whether cooling with air or water, an Auto-Tuning mode allows you to configure all parameters with a single click. There's also an Extreme Quiet mode that reduces all fan speeds below the default minimum to keep your system quiet when performing light tasks. Fans, water pumps, and AiO coolers can also be controlled via the UEFI BIOS.
Digital Power Control
The Digi+ voltage regulator module or VRM delivers real-time control over voltage drop, automatically switching frequency and power-efficiency settings. It also allows you to fine-tune your CPU for stability and performance.
VRM Heatsink and Thermal Pads
Two VRM heatsinks with thermal pads underneath to improve heat transfer from the MOSFETs and chokes for better cooling performance.
Cooler by Design
The Prime B550 series features cooling controls that are configurable via Fan Xpert 2+ software or via the UEFI BIOS. Furthermore, each header can dynamically reference three thermal sensors. And, with Fan Xpert 2+, you can map the temperature of supported ASUS graphics cards to optimize cooling for GPU- and CPU-intensive tasks. The Prime B550-Plus also features a dedicated PWM/DC header for self-contained water-cooling setups and onboard chassis fan headers supporting PWM and DC control.
Connectivity
Numerous USB ports support high-end rigs loaded with peripherals, including a USB Type-C and Type-A connector with USB 3.2 Gen 2 connectivity for compatible cases. The Prime B550-Plus also supports ThunderboltEX 3-TR, an Intel certified Thunderbolt 3 add-on card that enables bidirectional speeds of up to 40 Gb/s via a single cable. Additionally, an integrated Thunderbolt 3 header can support up to six devices in a daisy-chain and provide up to 100W of power to fast-charge devices.
Onboard M.2
PCIe 4.0 M.2 slots support drives up to 22110 and provide NVMe SSD RAID support for a performance boost. Create a RAID configuration with up to 64 Gb/s PCIe 4.0 storage devices to take advantage of the 3rd Generation AMD Ryzen platform. One M.2 slot supports PCIe 4.0 and one supports PCIe 3.0.
Optimized for Audio
Audio shielding separates analog and digital signal domains, reducing the chance of multilateral interference. There's also separate layers for left and right tracks, ensuring lower crosstalk between audio paths.
Aura Sync
ASUS Aura offers full RGB lighting control with functional presets for RGB LED strips connected to the onboard RGB headers. And, it can all be synced with Aura-capable hardware.
Addressable Gen 2 RGB Header
The addressable Gen 2 RGB header is now capable of detecting the number of LEDs on second-gen ARGB devices, allowing the software to tailor lighting effects to specific devices. This header also offers backward-compatibility with existing Aura RGB gear.
Armoury Crate
Armoury Crate is a software utility designed to give you centralized control of supported products. From a single interface, Armoury Crate allows you to customize RGB lighting and effects for compatible devices in your build. The software also provides control of settings for ASUS products, including keyboard and mouse preferences. Armoury Crate even features dedicated product registration and highlight to help you stay in touch with the ASUS community.
UPC: 192876782354

ASUS B550-PLUS Specs

Key Specs
Chipset
AMD B550
CPU Socket
AM4
Memory Slots
4x 288-Pin
Memory Support
DDR4 2133, 2400, 2666, 2800, 3000, 3200, 3333, 3466, 3600, 3733, 3866, 4000, 4133, 4266, 4400, 4600, 4800 MHz
M.2
1x M Key 2242, 2260, 2280, 22110 (PCIe 4.0 x4, SATA (Unspecified))
1x M Key 2242, 2260, 2280, 22110 (PCIe 3.0 x4, SATA (Unspecified))
Expansion Slots
1x PCIe 4.0 x16
1x PCIe 3.0 x16 (x4 mode)
3x PCIe 3.0 x1
Wi-Fi
No
Form Factor
ATX
CPU
Chipset
AMD B550
CPU Socket
AM4
Back Panel I/O
USB
1x USB-A (USB 3.2 Gen 2x2)
1x USB-C (USB 3.1/3.2 Gen 2)
4x USB-A (USB 3.0 / 3.1/3.2 Gen 1)
2x USB-A (USB 2.0)
Thunderbolt
No
Display
1x DisplayPort 1.2
1x HDMI 2.1
Audio
1x S/PDIF
5x 1/8" / 3.5 mm
Ethernet / Controller
1x Gigabit
Memory
Memory Slots
4x 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
SATA
6x SATA III
M.2
1x M Key 2242, 2260, 2280, 22110 (PCIe 4.0 x4, SATA (Unspecified))
1x M Key 2242, 2260, 2280, 22110 (PCIe 3.0 x4, SATA (Unspecified))
U.2
No
RAID Support
RAID 0, 1, 10
Internal I/O
Expansion Slots
1x PCIe 4.0 x16
1x PCIe 3.0 x16 (x4 mode)
3x PCIe 3.0 x1
USB
1x USB 3.0 / 3.1/3.2 Gen 1 Header (Supports 2 USB-A Port)
2x USB 2.0 Header (Supports 4 USB-A Port)
Multi-GPU Support
2-Way AMD CrossFireX
Air Cooling
2x 4-Pin CPU
3x 4-Pin System
1x Thermal Sensor
Liquid Cooling
1x 4-Pin Pump
Power Connectors
1x 24-Pin Mainboard
1x 8-Pin ATX
Security
TPM Module
LED Header
2x RGB
Audio
No
Add-On
1x Thunderbolt Card Header
BIOS
ROM
256 Mb
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
Audio Codec
Realtek ALC887 (7.1-Channel)
DAC
No
Wireless
Wi-Fi
No
Bluetooth
No
Software
OS Compatibility
Windows 10
Physical
Form Factor
ATX
Dimensions
12.01 x 9.61" / 30.5 x 24.4 cm
Packaging Info
Package Weight
2.905 lb
Box Dimensions (LxWxH)
13 x 10.5 x 2.3"

ASUS B550-PLUS Reviews

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Is this MB compatible with ASUS Wireless-AC1200 ...

Is this MB compatible with ASUS Wireless-AC1200 PCIe wifi adapter?
Asked by: Oscar
Yes, this motherboard is compatible with ASUS Wireless-AC1200.
Answered by: Nachmen
Date published: 2020-08-16

Does it need a cpu to update bios

Does it need a cpu to update bios
Asked by: basem
The ASUS Prime B550 Plus AM4 ATX Motherboard does not have a BIOS flashback button, so a compatible CPU would need to be installed to access the BIOS.
Answered by: Calvin M
Date published: 2023-12-04

Does it support ryzen 5 5600 / 5600x

Does it support ryzen 5 5600 / 5600x
Asked by: basem
Yes, the ASUS Prime B550 Plus AM4 ATX Motherboard supports AM4 processors such as the Ryzen 5 5600x.
Answered by: Calvin M
Date published: 2023-12-04

Does it support ryzen 5 5600 / 5600x without bios ...

Does it support ryzen 5 5600 / 5600x without bios update
Asked by: basem
The ASUS Prime B550 Plus AM4 ATX Motherboard is compatible with AM4 processors such as the Ryzen 5 5600x, but unfortunately we have no way of knowing which version of the BIOS it will ship with.
Answered by: Calvin M
Date published: 2023-12-04

Will this Motherboard support the Ryzen 5800x out ...

Will this Motherboard support the Ryzen 5800x out of the box?
Asked by: Dominick
No, you would need to update your BIOS.
Answered by: ASUS Answers
Date published: 2022-01-31

What size tower is best for this motherboard?

What size tower is best for this motherboard?
Asked by: Jesse
Any of our ATX mid-tower cases would support this motherboard. Our mid-tower cases are the most common form factor and have enough room to fit systems with a closed-loop CPU cooler, a couple of graphics cards, and a lot of storage.Our COUGAR MX330 Mid-Tower Case B&H # COMX330G (search out site for this number) is very popular.
Answered by: Daniel
Date published: 2020-06-22

Does this motherboard have a preinstalled WiFi ...

Does this motherboard have a preinstalled WiFi card?
Asked by: Alex
No, unfortunately the ASUS Prime B550 Plus AM4 ATX Motherboard does not contain a preinstalled WiFi card.
Answered by: dariusb
Date published: 2022-02-06

does this motherboard support ryzen 7 3700x ...

does this motherboard support ryzen 7 3700x processors?
Asked by: Jesse
Yes, the AMD Ryzen 7 3700X is compatible with this board.
Answered by: Sagi C
Date published: 2020-06-23
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