| Model |
|
| Brand |
MSI |
| Series |
PRO |
| Model |
B550M-A PRO |
| Supported CPU |
|
| CPU Socket Type |
AM4 |
| CPU Type |
Support 3rd Gen AMD Ryzen Desktop Processors and AMD Ryzen 4000 G-Series Desktop Processors |
| Chipsets |
|
| Chipset |
AMD B550 |
| Memory |
|
| Number of Memory Slots |
2x288pin (DDR4) |
| Memory Standard |
Supports DDR4 4600+/ 4400/ 4266/ 4133/ 4000/ 3866/ 3733/ 3600/ 3466/ 3200/ 3066/ 3000/ 2933/ 2800/ 2667 MHz by A-XMP OC MODE |
| |
Supports DDR4 3200/ 3066/ 3000/ 2933/ 2800/ 2667/ 2400/ 2133/ 1866 MHz by JEDEC |
| |
|
| |
1DPC 1R max speed 4600 MHz |
| |
1DPC 2R max speed 3866 MHz |
| Maximum Memory Supported |
64GB |
| Channel Supported |
Dual Channel |
| Expansion Slots |
|
| PCI Express 4.0 x16 |
1 x PCIe 4.0/3.0 x16 slot |
| PCI Express x1 |
1 x PCIe 3.0 x1 slot |
| Storage Devices |
|
| SATA 6Gb/s |
4 x SATA 6Gb/s |
| M.2 |
1 x M.2 slot (Key M) (from AMD Processor): |
| |
Supports PCIe 4.0/3.0 * |
| |
Supports SATA 6Gb/s |
| |
Supports 2242/2260/2280 storage devices |
| |
|
| |
* The supported specification depends on installed processor. |
| SATA RAID |
0/1/10 |
| Onboard Video |
|
| Onboard Video Chipset |
Supported only by CPU with integrated graphic: |
| |
1 x HDMI 2.1 port, supports a maximum resolution of 4096x2160@60Hz12 |
| |
1 x DVI-D port, supports a maximum resolution of 1920x1200@60Hz1 |
| |
Maximum shared memory of 16GB |
| |
|
| |
1. Available for the processor with integrated graphics. |
| |
2. Graphics specifications may vary depending on the CPU installed. |
| Onboard Audio |
|
| Audio Chipset |
Realtek ALC892/ALC897 Codec |
| Audio Channels |
7.1 Channels |
| Onboard LAN |
|
| LAN Chipset |
Realtek RTL8111H |
| Max LAN Speed |
10/100/1000Mbps |
| Rear Panel Ports |
|
| Back I/O Ports |
1 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 |
| Internal I/O Connectors |
|
| Onboard USB |
1 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 Connectors |
1 x 4-pin CPU fan connector |
| |
1 x 4-pin system fan connectors |
| |
1 x Front panel audio connector |
| |
2 x System panel connectors |
| |
1 x Chassis Intrusion connector |
| |
1 x TPM module connector |
| |
1 x Clear CMOS jumper |
| Physical Spec |
|
| Form Factor |
Micro ATX |
| LED Lighting |
None RGB |
| Dimensions (W x L) |
9.3" x 7.9" |
| Power Pin |
1 x 24-pin ATX main power connector |
| |
1 x 4-pin ATX 12V power connector |
| Windows 11 Compatibility |
|
| Windows 11 |
Supported |
| Features |
|
| Features |
Support 3rd Gen AMD Ryzen Desktop Processors and AMD Ryzen 4000 G-Series Desktop Processors |
| |
|
| |
Supports DDR4 Memory, up to 4600(OC) MHz |
| |
|
| |
Lightning Fast Experience: PCIe 4.0, Lightning Gen4 x4 M.2 |
| |
|
| |
Core Boost: With premium layout and digital power design to support more cores and provide better performance |
| |
|
| |
DDR4 Boost: Advanced technology to deliver pure data signals for the best performance and stability |
| |
|
| |
2oz Thickened Copper PCB: An enhanced PCB design improves heat dissipation and performance reliability |
| |
|
| |
Audio Boost: Reward your ears with studio grade sound quality |
| |
|
| |
Dragon Center: A brand new software which integrates all MSI exclusive tools with user friendly user interface |
