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B550M 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 4600(OC) MHz
    Lightning Fast Experience: PCIe 4.0, Lightning Gen4 x4 M.2 with M.2 Shield Frozr
    M.2 Shield Frozr: Strengthened built-in M.2 thermal solution. Keeps M.2 SSDs safe while preventing throttling, making them run faster
    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

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CPU (Max Support)
Support 3rd Gen AMD Ryzen™ Desktop Processors and AMD Ryzen™4000 G-Series Desktop Processors
Socket
AMD Socket AM4
Chipset
AMD® B550 Chipset
DDR4 Memory
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
Memory Channel
Dual
DIMM Slots
2
Max Memory (GB)
64
PCI-E x16
1
PCI-E Gen
Gen4 / Gen3
PCI-E x1
2
SATAIII
4
M.2 Slot
1
RAID
0/1/10
TPM (header)
1
LAN
1x Realtek® RTL8111H Gigabit LAN
USB 3.2 ports (Front)
2(Gen 1, Type A)
USB 3.2 ports (Rear)
4(Gen 1, Type A)
USB 2.0 ports (Front)
4
USB 2.0 ports (Rear)
2(Type A)
Serial ports(Front)
1
Audio ports (Rear)
Realtek® ALC892/ALC897 Codec
DisplayPort
1
VGA
1
HDMI
1
DirectX
12
Form Factor
M-ATX
Operating System
Support for Windows® 10 64-bit