MSI B550-A PRO ATX Motherboard For AMD 3rd Gen 5000 Series CPU, AM4, B550, 2X M.2, 4X DDR4 Dimm, Back I/O: 7X USB, 1X Type C, PS2, HDMI, DP, Lan, HD Audio, Internal I/O: 1XUSB 3.2, 1X Type C, 2X USB 2.0, 1X 12V RGB Header, 1X5V A-RGB Header
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MSI B550-A PRO ATX Motherboard For AMD 3rd Gen 5000 Series CPU, AM4, B550, 2X M.2, 4X DDR4 Dimm, Back I/O: 7X USB, 1X Type C, PS2, HDMI, DP, Lan, HD Audio, Internal I/O: 1XUSB 3.2, 1X Type C, 2X USB 2.0, 1X 12V RGB Header, 1X5V A-RGB Header
- Brand: MSI
- MPN: B550-A PRO
- Part #: MBDMSI4904277
- UPC: 824142219362
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What PB Tech customers are saying about this product...
See More Reviews"This board looks so good in my build, and performs like a dream! Was basically plug-and-play to install, didn't need a BIOS update for my Ryzen 5 5600x (though it's certainly nice ...view more"
"Seems like a great motherboard for a very cheap price. I've heard some people complain that the MSI B550 has some issues where it randomly restarts the PC but haven't had anything ...view more"
"100% perfect :)"
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MSI B550-A PRO ATX Motherboard For AMD 3rd Gen 5000 Series CPU, AM4, B550, 2X M.2, 4X DDR4 Dimm, Back I/O: 7X USB, 1X Type C, PS2, HDMI, DP, Lan, HD Audio, Internal I/O: 1XUSB 3.2, 1X Type C, 2X USB 2.0, 1X 12V RGB Header, 1X5V A-RGB Header
- Brand: MSI
- MPN: B550-A PRO
- Part #: MBDMSI4904277
- UPC:824142219362
Product URL: https://www.pbtech.com/product/MBDMSI4904277/imglib/payoptions/contact?pid=MBDMSI4904277
Features
B550-A PRO
- 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
- Supports DDR4 Memory, up to 4400(OC) MHz
- Lightning Fast Experience: PCIe 4.0, Lightning Gen4 x4 M.2 with M.2 Shield Frozr, AMD Turbo USB 3.2 Gen 2
- Premium Thermal Solution: Extended Heatsink Design with additional choke thermal pad and 7W/mK pad, and M.2 Shield Frozr are built for high performance system and non-stop works
- Powerful Design: Core Boost, Digital PWM IC, 2oz Thickened Copper PCB, Creator Genie, DDR4 Boost
- Audio Boost: Reward your ears with studio grade sound quality
- Multi-GPU: With Steel armor PCI-E slots. Supports 2-Way AMD Crossfire™
- Dragon Center: A brand new software which integrates all MSI exclusive tools with user friendly user interface.
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.
THERMAL SOLUTION FOR MORE CORES AND HIGHER PERFORMANCE
With more cores' processors, thermal and power design is more important to make sure the temperature keeps lower. MSI extended PWM heatsink with 7W/mK thermal pad ensures even high-end processors to run in full speed with MSI motherboards.
M.2 SHIELD FROZR
World's fastest SSDs can start to lower performance when getting hot. Part of the motherboards heatsink design, M.2 SHIELD FROZR is the next generation M.2 thermal solution to avoid this by offering the best thermal protection to make sure that SSD maintains maximum performance.
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.
OPTIMIZED FOR WATER COOLING
Designed to support the most popular All-In-One & customized water cooling solutions on the market. A dedicated water pump PIN header supports up to 3 amp, giving you full control of the water pump speed. A clearly marked 'keep-out-zone' allows for easy and safe installation and a perfect fit.
TESTED TO WORK BEST WITH
- MSI
- Bitspower
- Coolermaster
- Corsair
- ekwb
- Thermalltake
EASY BIOS RECOVERY WITH FLASH BIOS BUTTON
Run into trouble when updating your BIOS? Simply flash the old BIOS version back and continue working within minutes with Flash BIOS Button. Flash BIOS Button even works without a CPU, memory or graphics card installed!
EZ DEBUG LED
Run into trouble? Onboard LEDs for key components will indicate the source of the problem so you know exactly where to look to get up and running again.
XL CLIP
The enlarged PCI-E clip helps you swap or remove your devices easier. Keep the PCI-E slot stronger and safer.
KEEP OUT ZONE
ATYPICAL PCB - EASY TO ARRANGE YOUR CABLES
Not clever at cable arrangement? MSI Atypical PCB design not only the identity of stylish but also makes SATA and USB cable routing easier. Arranges cable neatly even you are not familiar with system build.
COMPATIBILITY
- RyzenTM 3000 SERIES PROCESSORS SUPPORT
- EXTREME STABILITY & COMPATIBILITY TESTING FOR MEMORY
- WINDOWS 10 CERTIFIED
FORTIFY YOUR SYSTEM WITH PCI-E STEEL ARMOR
MSI PCI Express Steel Armor slots are secured to the motherboard with extra solder points and support the weight of heavy graphics cards. When every advantage in games counts, Steel Armor shields the point of contact from electromagnetic interference.
ULTIMATE MOTHERBOARD PROTECTION
Double ESD protection doubles up the grounding layer around the mounting holes, preventing static discharge surges from damaging the motherboard.
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.
USB 3.2 GEN 2 - MAXIMIZE YOUR USB DEVICE PERFORMANCE
Read and write your files over USB faster than ever. MSI PRO series motherboards offer a wide variety of options to connect and boost your USB devices, delivering 10Gbps transferring speed by both USB 3.2 Gen 2 Type-A and Type-C.
USB FRONT TYPE-C
MSI motherboards support USB Front Type-C that allows gamers to connect with the latest USB devices. Built up a system with MSI PC case to have the most convenient experience.
MYSTIC LIGHT SYNC - EXTEND YOUR RGB EXPERIENCE WITH EASE
Add your color if you want! Mystic Light Extension pin header provides an intuitive way to control additional RGB strips and other RGB peripherals added to a system, without needing a separate RGB controller.
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.
10 + 2 + 1 DIGITAL POWER WITH DOUBLER DESIGN
Unleash and sustain maximum performance with an aggressive VRM design built with a total of 10 phases Digital Power with Doubler Design. Combining exclusive Core Boost technology, PRO series motherboard is ready to sustain heavy daily work.
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.
Specifications
CPU
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
CHIPSET
AMD B550 Chipset
MEMORY
4x DDR4 memory slots, support up to 128GB
- 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+ MHz by A-XMP OC MODE
- 1DPC 1R Max speed 4800 MHz
- 1DPC 2R max speed 3866 MHZ
- 2DPC 1R max speed 4000 MHZ
- 2DPC 2R max speed 3600 MHZ
Dual channel memory architecture
Supports non-ECC UDIMM memory
Supports ECC UDIMM memory (non-ECC mode)
Supports un-buffered memory
Please refer www.msi.com for more information on compatible memory.
EXPANSION SLOT
1x PCIe 4.0/ 3.0 x16 slot (PCI_E1)
1x PCIe 3.0 x16 slot (PCI_E3), supports x4 speed
2x PCIe 3.0 x1 slots
The supported specification depends on installed processor.
When installing PCIe SSD in M.2_2, PCI_E3 slot will be unavailable.
MULTI-GPU
Supports 2-Way AMD CrossFire™ Technology
ONBOARD GRAPHICS
1x HDMI 2.1 port, supports a maximum resolution of 4096x2160 @60Hz
1x DisplayPort, supports a maximum resolution of 4096x2160 @60Hz
Maximum shared memory of 16 GB
Available for the processor with integrated graphics.Graphics specifications may vary depending on the CPU installed.
STORAGE
AMD B550 Chipset
- 6x SATA 6Gb/s ports
- 2x M.2 slots (Key M)
- M2_1 slot (from AMD Processor)
- Supports PCIe 4.0/ 3.0 x4
- Supports SATA 6Gb/s
- Supports 2242/ 2260/ 2280/ 22110 storage devices
- M2_2 slot (from AMD B550 chipset)
- Supports PCIe 3.0x4
- Supports 2242/ 2260/ 2280 storage devices
The supported specification depends on installed processor.
RAID
Supports RAID 0, RAID 1 and RAID 10 for SATA storage devices
Supports RAID 0 and RAID 1 for M.2 NVMe storage devices
USB
AMD B550 Chipset
- 3x USB 3.2 Gen 1 5Gbps ports (1 Type-C internal connector, and 2 ports are available through the internal USB 3.2 Gen 1 5Gbps connector)
- 8x USB 2.0 ports (4 Type-A ports on the back panel, 4 ports through the internal USB 2.0 connectors)
AMD Processor
- 2x USB 3.2 Gen 2 10Gbps ports (1 Type-C port and 1 Type-A port on the back panel)
- 2x USB 3.2 Gen 1 5Gbps Type-A ports on the back panel
AUDIO
Realtek® ALC892/ALC897 Codec
- 7.1-Channel High Definition Audio
LAN
1x Realtek® 8111H Gigabit LAN controller
INTERNAL CONNECTORS
1x 24-pin ATX main power connector
1x 8-pin ATX 12V power connector
6x SATA 6Gb/s connectors
2x M.2 slots (M-Key)
1x USB 3.2 Gen 1 5Gbps Type-C port
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 water-pump fan connector
6x 4-pin system fan connectors
1x Front panel audio connector
2x System panel connectors
1x Chassis Intrusion connector
1x 4-pin RGB LED connector
2x 3-pin RAINBOW LED connectors
1xTPM module connector
1x Clear CMOS jumper
BACK PANEL PORTS
Keyboard / Mouse
DisplayPort
LAN
HD Audio Connectors
Flash BIOS Button
USB 2.0
HDMI
USB 2.0
USB 3.2 Gen 1 5Gbps Type-A
USB 3.2 Gen 2 10Gbps Type-A+C
MSI B550-A PRO back panel ports
DIMENSIONS
ATX Form Factor
12 in. x 9.6 in. (30.5 cm x 24.4 cm)
MOUNTING
9 mounting holes