MSI B550M-A PRO Motherboard (AM4)

PRO series helps users work smarter by delivering an efficient and productive experience. Featuring stable functionality and high-quality assembly, PRO series motherboards provide not only optimized professional workflows but also less troubleshooting and longevity. USER FRIENDLY DESIGN MSI motherboards feature tons of convenient and smart design for DIY users, countless system tuning and troubleshooting tools are at your disposal to push your system to new heights and satisfy even the most demanding tweaker. Makes it so easy to install your own motherboard without any issue. FULLY CONTROLLABLE IN BIOS AND SOFTWARE MSI motherboards let you manage speeds and temperatures for all your system and CPU fans. Total Fan Control allows you check your primary system characteristics in a simplified graphical interface. You can also set up to 4 temperature targets for CPU and motherboard, which will adjust the fan speeds automatically. CONNECTIVITY The most important thing of DIY is expandability. MSI PRO series motherboards feature plenty possibility for prosumers’ need. Stable LAN, faster storage and USB transfer speed and other expandable connectors are ready to enlarge your flexibility. FAST AND FUTURE-READY STORAGE MSI PRO series motherboards support all the latest storage standards, which allows users to connect any ultra-fast storage device. Higher efficiency makes your work easier. LIGHTNING GEN 4 M.2 Utilizing 3rd Gen Ryzen processors, MSI B550 motherboards feature latest Lightning Gen 4 M.2 which is the fastest onboard storage solution on the market with up to 64 Gb/s transfer speed. EXPERIENCE MORE MSI PRO series motherboards are designed to satisfy any professional workflow. Elevate your listening pleasure and enjoy extreme sound quality. Moreover, with years of experience in creating performance enhancing tools that are easy to use, only the highest quality applications are at your disposal. The extensive features let you fine-tune your system to deliver reliable maximum performance. PCB WITH 2OZ THICKENED COPPER An enhanced PCB design with 2oz thickened copper increases conductivity, improving heat dissipation and performance reliability especially during overclocking. LIGHTNING GEN 4 PCI-E MSI lightning Gen 4 PCI-E is the latest and the fastest PCI-E data transfer solution with 64GB/s of unidirectional transfer bandwidth that has doubled compared to its previous generation. PCIe 4.0 maintains both backward and forward compatibility with older and newer specifications. Optimized by steel armor design and server grade PCB, you can enjoy next-gen devices without any compromise. A HUGE STEP OF DDR PERFORMANCE MSI OC LAB does not merely work hard on extreme overclocking. Compared to B450 motherboard memory A-XMP profile, MSI does have great improvement on performance and efficiency for B550 motherboards. Easy to enable A-XMP profile with auto power settings to get the best memory speed and stability. CORE BOOST Core Boost technology combines MSI's premium layout and optimized power design which allows for faster and undistorted current delivery to the CPU at pin-point precision. Not only supporting multi-core CPU, also creating the perfect conditions for your CPU overclocking. HIGH QUALITY AUDIO CAPACITORS A high fidelity sound experience with exceptional acoustics and realism for studio level headphones is ensured. HD AUDIO CONNECTORS Keep you sound perfect by transmit your aduio with pure digital signal. ISOLATED AUDIO DESIGN Like a dedicated sound card, audio components and circuits have been laid on a reserved motherboard section and electrically isolated. SEPARATED AUDIO LAYERS FOR CLEAN LEFT & RIGHT CHANNELS Using separated layers in the PCB ensures equally pristine sound quality for both left and right audio channels. CLICK BIOS 5 Get more from a loaded BIOS designed for ease of use. Fine-tune the motherboard for gaming performance, efficiency, or overclocking world records! CREATOR GENIE Quickly overclock your CPU with a single button for more performance. A-XMP Choose from a preset A-XMP profile and automatically overclock compatible DDR memory. M-FLASH Conveniently flash or upgrade the BIOS in a few minutes from the CMOS Setup Utility. HARDWARE MONITOR Get immediate access to your critical hardware information in real-time including temperature, memory capacity, clock speed, and voltage. MEMORY TRY IT Get extreme speed out of your system memory and get more performance. SEARCH & FAVORITES A permanent search & favorite option in the top right corner moves you through the BIOS menus quickly. Make sure you enjoy the purest sound quality in both stereo and surround sound. DRAGON CENTER MSI brand new Dragon Center unifies a suite of MSI software utilities into a single centralized application. Take control of advanced motherboards features and unleash endless possibilities. True Color Optimized monitor’s brightness and color in several modes for different situation, you can also customize by yourself. Live Update Never miss out on important updates. MSI Live Update automatically downloads and installs the latest drivers, BIOS and software so you can focus on your work. User Scenario One click for setting your computer, even customize own profile as your preference. Hardware Monitor Get immediate access to your critical hardware information in real-time. OC Setting Tune select motherboard settings in the OC Setting menu, where options to boost core performance and optimize system cooling are presented in an intuitive interface. Total Fan Control Assume complete control of your fans with Total Fan Control. Set up to four CPU temperature targets and the motherboard will adjust fan speeds automatically. Speed Up When enabled, it optimizes your devices for even better transfer speeds, saving a lot of time when transferring data. Product Registration Register your MSI product to enjoy a host of benefits!

General

Brand:	MSI
Series:	B550M-A PRO
Release date:	November 2020
Categories:	Computers > Components > Motherboards > AMD > AM3 Computers > Components > Motherboards > AMD > AM4
LSN:	XVF-4TV-FPD-5
Barcode:	4719072752613
Component For:	PC
Model Number:	MSI B550M A PRO AM4
Type:	Motherboard

Warranty

Warranty:

3 Year

Supported CPU

CPU Socket Type:	AM4
Processor Series:	AMD Ryzen 3 3rd Gen • 3rd Generation AMD Ryzen 5 • 3rd Generation AMD Ryzen 7 • 3rd Generation AMD Ryzen 9

Chipset

Chipset:	AMD B550
Chipset Family:	AMD
North Bridge:	AMD B550

Memory

Channels Supported:	Dual Channel
Maximum Memory Supported:	64GB
Memory Standard:	DDR4
Non-ECC:	Yes
Number of Memory Slots:	2
Slot Type:	DIMM
Supported Clock Speed:	1866 • 2133 • 2400 • 2667 • 2800 • 2933 • 3000 • 3066 • 3200 • 3466 • 3600 • 3733 • 3866 • 4000 • 4133 • 4266 • 4400 • 4600

Storage

SATA 6Gb/s:

4

Onboard

Audio Channels:	7.1 Channel High Definition Audio
Audio Chipset:	Realtek ALC892/ALC897 Codec
Chassis Intrusion Detection:	Yes
Front Panel Audio Connectors:	Yes
Internal I/O Connections:	1x 24-pin ATX Main Power Connector • 1x 4-pin ATX 12V Power Connector • 4x SATA 6Gb/s Connectors • 1x M.2 Slots (M-Key) • 1x USB 3.2 Gen 1 5Gbps Connector (Supports Additional 2 USB 3.2 Gen 1 5Gbps Ports) • 2x USB 2.0 Connectors (Supports Additional 4 USB 2.0 Ports) • 1x 4-pin CPU Fan Connector • 1x 4-pin System Fan Connectors • 1x Front Panel Audio Connector • 2x System Panel Connectors • 1x Chassis Intrusion Connector • 1xTPM Module Connector • 1x Clear CMOS Jumper
USB Ports:	4 x USB 3.2 Type-A Gen 1 • 2 x USB 2.0 Type-A

Expansion Slots

M2 Slots:	1 x M.2 (Key-M)
SLI / Crossfire Support:	Not supported

Rear Panel Ports

DVI-D:	1
Ethernet:	1
HDMI:	1
USB 2.0:	2
USB 3.0:	1
Video Ports:	1 x HDMI 1.4

BIOS

BIOS Type:	UEFI AMI
Clear BIOS Jumper:	Yes

Networking

Ethernet / LAN:	Yes
Ethernet Interface Type:	Gigabit Ethernet
Lan Chipset:	Realtek RTL8111H

Ports

USB 3.0 (3.1 Gen 1) Type-A Ports:

4

Physical Specification

Form Factor:	Micro ATX
Item Depth (mm):	200
Item Height (mm):	236
Item Width (mm):	200

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• AMD B550 Chipset: Micro-ATX Form Factor | Supports AMD Ryzen™ 5000 & 3000 Series desktop processors (not compatible with AMD Ryzen™ 5 3400G & Ryzen™ 3 3200G) and AMD Ryzen™ 4000 G-Series desktop processors | 2x DDR4 memory slots, support up to 64GB [1] | Supports DDR4 1866/ 2133/ 2400/ 2667/ 2800/ 2933/ 3000/ 3066/ 3200 MHz by JEDEC | Supports DDR4 2667/ 2800 /2933 /3000 /3066 /3200 /3466 /3600/ 3733 /3866 /4000 /4133 /4266 /4400/ 4600+ MHz by A-XMP OC MODE | 1DPC 1R max speed 4600 MHz | 1DPC 2R max speed 3866 MHz
• Dual channel memory architecture
• Supports non-ECC UDIMM memory | Supports ECC UDIMM memory (non-ECC mode) | Supports un-buffered memory
• 1x PCIe 3.0 x1 slot [1] | 1x PCIe 4.0/3.0 x16 slot | 1x HDMI 1.4 port, supports a maximum resolution of 4096x2160 @60Hz[1][2] Support for HDMI™ 1.4 version, HDCP 1.4 & 2.3 | 1x DVI-D port, supports a maximum resolution of 1920x1200@60Hz[1] | Maximum shared memory of 16 GB
• 4 x SATA 6Gb/s ports | 1 x M.2 slot (Key M) (from AMD Processor) | Supports PCIe 4.0/ 3.0 [1] | Supports SATA 6Gb/s | Supports 2242/ 2260/ 2280 storage devices | Supports RAID 0, RAID 1 and RAID 10 for SATA storage devices | Supports RAID 0 and RAID 1 for M.2 NVMe storage devices | 2x USB 3.2 Gen 1 5Gbps ports are available through the internal USB 3.2 Gen 1 5Gbps connector | 6x USB 2.0 ports (2 Type-A ports on the back panel, 4 ports through the internal USB 2.0 connectors) | 4x USB 3.2 Gen 1 5Gbps Type-A ports on the back panel
• Realtek® ALC892/ALC897 Codec | 7.1-Channel High Definition Audio
• 1x 24-pin ATX main power connector | 1x 4-pin ATX 12V power connector | 4x SATA 6Gb/s connectors | 1x M.2 slots (M-Key) | 1x USB 3.2 Gen 1 5Gbps connector (supports additional 2 USB 3.2 Gen 1 5Gbps ports) | 2x USB 2.0 connectors (supports additional 4 USB 2.0 ports) | 1x 4-pin CPU fan connector | 1x 4-pin system fan connectors | 1x Front panel audio connector | 2x System panel connectors | 1x Chassis Intrusion connector | 1x TPM module connector | 1x Clear CMOS jumper

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