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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
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
Please refer www.msi.com for more information on compatible memory.
Expansion Slot
1x PCIe 3.0 x1 slot 1
1x PCIe 4.0/3.0 x16 slot
The supported specification depends on installed processor.
Onboard Graphics
1x HDMI™ 2.1 port, supports a maximum resolution of 4096x2160 @60Hz12
Support HDCP 1.4 & 2.3
1x DVI-D port, supports a maximum resolution of 1920x1200@60Hz1
Maximum shared memory of 16 GB
Available for the processor with integrated graphics. Graphics specifications may vary depending on the CPU installed.
Storage
4x SATA 6Gb/s ports
1x 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
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
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)
AMD Processor
4x 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® RTL8111H Gigabit LAN controller
Internal connectors
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
Back panel ports
LAN port
HDMI™
DVI-D
Keyboard / Mouse
USB 3.2 Gen 1 5Gbps Type-A
USB 2.0 Ports
Audio Connectors
Dimensions
Micro-ATX Form Factor
9.3 in. x 7.9 in. (23.6 cm x 20 cm)
Mounting
8 mounting holes
Box content
B550M-A PRO Motherboard
2 x SATA Cables
I/O Shielding
Driver DVD
MSI Case Badge
Product Registration Card
Quick Installation Guide
