MSI B550-A PRO AM4 ATX Motherboard

BH #MSB550APRO • MFR #B550APRO
MSI B550-A PRO AM4 ATX Motherboard
Key Features
  • ATX Form Factor
  • AMD B550 Chipset
  • Socket AM4
  • 4 x Dual-Channel DDR4-4400 (OC)
Focus on business programs and optimize your workflow with the B550-A PRO ATX Motherboard from MSI. Designed to streamline assembly time, MSI allows you to focus on components that will enhance workload efficiency. The B550-A Pro is ideal for the DIY users who wish to replace older out-of-date motherboards or enjoy building from scratch.
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MSI B550-A PRO Overview

  • 1Description
  • 2User Friendly Design
  • 3Enhanced Performance
  • 4MSI Dragon Center
  • 5BIOS 5

Focus on business programs and optimize your workflow with the B550-A PRO ATX Motherboard from MSI. Designed to streamline assembly time, MSI allows you to focus on components that will enhance workload efficiency. The B550-A Pro is ideal for the DIY users who wish to replace older out-of-date motherboards or enjoy building from scratch.

Based upon AMD B550 chipset architecture, the B550-A Pro's AM4 socket allows you to install Ryzen 5000, 3000, and Ryzen 4000 G-series processors. Four dual-channel memory slots allow you to take advantage of DDR4 memory modules with speeds up to 4400 MHz. You can connect several hard drives with six SATA III and two M.2 ports for enhanced program loading and increasing overall performance. Install graphics, sound, or networking cards with one PCIe 4.0 x16, one PCIe 3.0 x16, and two PCIe 3.0 x1 slots. An RJ45 port is also available for wired internet connectivity, and with 7.1-channel high-definition audio, you can experience a wide range of entertainment. This motherboard is only compatible with Windows 10 (64-bit) operating systems.

User Friendly Design

Whether you are a seasoned or amateur builder, the B550-A Pro is designed for simplicity and durability, giving you all the tools you need to put together a PC optimized for your business level needs. Steel armor PCIe slots are reinforced with heavy soldered connections to prevent bending along with an XL clip for easy device swapping. Double ESD protection prevents shorts by adding another grounding layer to mounting holes. Additionally, an EZ debug LED system tells you if components are experiencing any issues, reducing time spent on troubleshooting.

Enhanced Performance

MSI constructed the B550-A Pro with enhanced features to increase system performance. The foundation of this board is built on 2oz thickened copper printed circuits for increased durability and conductivity between components. Extended heatsink design and M.2 Shield Frozr technology keeps your high-end components safe from damage caused by excessive heat. Core Boost, DDR4 Boost, Digital PWM, and Lightning Gen 4 all work together to provide better stability during increased workloads while also maximizing transfer-speed bandwidth. Enrich your media experience with MSI's Audio Boost and 4K support, providing clear visuals and crisp sound.

MSI Dragon Center

Take control of advanced motherboard features directly from your dashboard with MSI's free Dragon Center software. Giving you total fan control, overclock settings, and hardware monitoring, you can fine-tune your experience depending on your needs. You can also set up specific user scenarios, automatic live updates, and adjust monitor settings for customizable brightness and color adjusting.

BIOS 5

BIOS 5 allows you to dive deeper into hardware settings, enabling CPU and memory overclocking, BIOS flashing, and real-time hardware monitoring in both an easy and advanced mode for seasoned technical users.
UPC: 824142219362

MSI B550-A PRO Specs

CPU
ChipsetAMD B550
CPU SocketAM4
Back Panel I/O
USB2 x USB 2.0 Type-A
2 x USB 3.1 / USB 3.2 Gen 1 Type-A
1 x USB 3.1 / USB 3.2 Gen 2 Type-A
1 x USB 3.1 / USB 3.2 Gen 2 Type-C
ThunderboltNone
Display1 x DisplayPort
1 x HDMI 2.1
Audio5 x 3.5 mm
1 x S/PDIF
Ethernet / Controller1
PS/21 x PS/2
ButtonsBIOS Flashback
Memory
Memory Slots4 x 288-Pin
Memory SupportDDR4 1866, 2133, 2400, 2667, 2800, 2933, 3000, 3066, 3200, 3466, 3600, 3733, 3866, 4000, 4133, 4266, 4400 MHz
Maximum Capacity128 GB
Channel ArchitectureDual Channel
ECC SupportNon-ECC, ECC Unbuffered
Storage Expansion
SATA6 x SATA III
M.21 x M Key 2242, 2260, 2280, 22110 (PCIe 4.0 x4, PCIe 3.0 x4)
1 x M Key 2242, 2260, 2280 (PCIe 3.0 x4)
U.2None
RAID SupportRAID 0, 1, 10 (SATA)
RAID 0, 1 (M.2)
Internal I/O
Expansion Slots1 x PCIe 4.0 x16
1 x PCIe 3.0 x16
2 x PCIe 3.0 x1
USB2 x USB 2.0 Header (Supports 4 USB Type-A Port)
1 x USB 3.1 / USB 3.2 Gen 1 Header (Supports 1 USB Type-C Port)
1 x USB 3.1 / USB 3.2 Gen 1 Header (Supports 2 USB Type-A Port)
Multi-GPU Support2-Way AMD CrossFireX
Air Cooling1 x 4-Pin CPU
6 x 4-Pin System
Liquid Cooling1 x 4-Pin Pump
Power Connectors1 x 24-Pin Mainboard
1 x 8-Pin ATX
SecurityChassis Intrusion, TPM Module
LED Header3 x RGB
Audio1 x Speaker
DiagnosticsClear CMOS
Front Panel I/O
I/O Connection HeadersUSB 3.1 / USB 3.2 Gen 1
Audio
Audio CodecRealtek ALC892/ALC897 (7.1-Channel)
Software
Supported Operating SystemsWindows 10 (64-Bit)
Physical
Form FactorATX
Dimensions9.6 x 12" / 24.4 x 30.5 cm
Packaging Info
Package Weight3.555 lb
Box Dimensions (LxWxH)13.6 x 10.8 x 3.45"
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How many usb 2.0 ports can I put on it?

How many usb 2.0 ports can I put on it?
Asked by: Thomas
If you used both Pcie 4x slots, so you could do 4 USB 2.0 per each 4x slot.
Answered by: Nachmen
Date published: 2020-10-13

The picture for IO shield makes it seems like it ...

The picture for IO shield makes it seems like it only covers the ports and not the entire portion, does it cover everything?
Asked by: Mohammad
No, unfortunately this model leaves some parts of the IO exposed.
Answered by: dariusb
Date published: 2021-03-18

Does this have molenex connectors for the fans i ...

Does this have molenex connectors for the fans i want to buy?
Asked by: Cash
This has 6 4-pin system fan connectors.
Answered by: Bennie
Date published: 2020-07-30

The picture for IO shield makes it look like it ...

The picture for IO shield makes it look like it just covers the ports? Just want to make sure it's a full IO shield?
Asked by: Mohammad
Yes, the MSI B550-A PRO AM4 ATX Motherboard BH #MSB550APRO comes with a full I/O shield.
Answered by: Miguel
Date published: 2021-03-18

does this board have a D-RGB Header?

does this board have a D-RGB Header?
Asked by: rob
Yes, this motherboard has D-RGB header.
Answered by: Daniel
Date published: 2020-08-28

Does this have on-board RGB lighting?

Does this have on-board RGB lighting?
Asked by: Juliana
This model doesn't support RGB.
Answered by: Bennie
Date published: 2020-07-22

Does this Mobo have bluetooth and wifi ...

Does this Mobo have bluetooth and wifi capabilities?
Asked by: Mohammad
No, unfortunately this model does not contain Wi-Fi and Bluetooth features.
Answered by: dariusb
Date published: 2021-03-21
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