BrandMSI
SeriesPRO
ModelB550M-A PRO
C P U Socket TypeAM4
C P U TypeSupport 3rd Gen AMD Ryzen Desktop Processors and AMD Ryzen 4000 G-Series Desktop Processors
ChipsetAMD B550
Number of Memory Slots2x288pin (DDR4)
Memory StandardSupports DDR4 4600+/ 4400/ 4266/ 4133/ 4000/ 3866/ 3733/ 3600/ 3466/ 3200/ 3066/ 3000/ 2933/ 2800/ 2667 MHz by A-XMP OC MODESupports DDR4 3200/ 3066/ 3000/ 2933/ 2800/ 2667/ 2400/ 2133/ 1866 MHz by JEDEC1DPC 1R max speed 4600 MHz1DPC 2R max speed 3866 MHz
Maximum Memory Supported64GB
Channel SupportedDual Channel
P C I Express 4.0 x161 x PCIe 4.0/3.0 x16 slot
P C I Express x11 x PCIe 3.0 x1 slot
Serial A T A ( S A T A)4 x SATA 6Gb/s
M.21 x M.2 slot (Key M) (from AMD Processor):Supports PCIe 4.0/3.0 *Supports SATA 6Gb/sSupports 2242/2260/2280 storage devices* The supported specification depends on installed processor.
S A T A R A I D0/1/10
Onboard Video ChipsetSupported only by CPU with integrated graphic:1 x HDMI 2.1 port, supports a maximum resolution of 4096x2160@60Hz121 x DVI-D port, supports a maximum resolution of 1920x1200@60Hz1Maximum shared memory of 16GB1. Available for the processor with integrated graphics.2. Graphics specifications may vary depending on the CPU installed.
Audio ChipsetRealtek ALC892/ALC897 Codec
Audio Channels7.1 Channels
L A N ChipsetRealtek RTL8111H
Max L A N Speed1Gbps
Back I/ O Ports1 x DVI-D / 1 x HDMI / 1 x LAN (RJ45) / 2 x PS/2 / 2 x USB 2.0/1.1 / 3 x Audio Jacks / 4 x USB 3.2 Gen 1
Onboard U S B1 x USB 3.2 Gen 1 5Gbps connector (supports additional 2 USB 3.2 Gen 1 5Gbps ports)2 x USB 2.0 connectors (supports additional 4 USB 2.0 ports)
Other Connectors1 x 4-pin CPU fan connector1 x 4-pin system fan connectors1 x Front panel audio connector2 x System panel connectors1 x Chassis Intrusion connector1 x TPM module connector1 x Clear CMOS jumper
Form FactorMicro ATX
L E D LightingNone RGB
Dimensions ( W x L)9.3" x 7.9"
Power Pin1 x 24-pin ATX main power connector1 x 4-pin ATX 12V power connector
Windows 11Supported
FeaturesSupport 3rd Gen AMD Ryzen Desktop Processors and AMD Ryzen 4000 G-Series Desktop ProcessorsSupports DDR4 Memory, up to 4600(OC) MHzLightning Fast Experience: PCIe 4.0, Lightning Gen4 x4 M.2Core Boost: With premium layout and digital power design to support more cores and provide better performanceDDR4 Boost: Advanced technology to deliver pure data signals for the best performance and stability2oz Thickened Copper PCB: An enhanced PCB design improves heat dissipation and performance reliabilityA
chipsetB550M
socketAM4
memory TypeDDR4