PRO B550M-B

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Chipset	AMD B550
CPU	Supports AMD Ryzen™ 5000 Series, 5000 G-Series, 4000 G-Series, 3000 Series and 3000 G-Series desktop processors Socket AM4
Memory	2x DDR4, Maximum Memory Capacity 64GB Memory Support DDR4 2667/ 2800 /2933 /3000 /3066 /3200 /3466 /3600/ 3733 /3866 /4000 /4133 /4266 /4400/ 4600+ MHz by A-XMP OC MODE Max. overclocking frequency: • 1DPC 1R Max speed up to 4600+ MHz • 1DPC 2R Max speed up to 3866+ MHz Supports JEDEC Speed Supports Dual-Channel mode Supports non-ECC, un-buffered memory Supports Memory Overclocking by A-XMP OC mode • The DIMM slots on this motherboard have double-sided latches. • Memory compatibility and supported speeds can vary depending on the CPU and memory configuration. For detailed information, please refer to the Memory Compatibility List available on the product’s Support page or visit https://www.msi.com/support/.
Onboard Graphics	1x HDMI™ Support HDMI^TM 2.1, maximum resolution of 4K 60Hz* 1x DisplayPort Supports DP 1.2, maximum resolution of 4K 60Hz* *Available only on processors featuring integrated graphics. Graphics specifications may vary depending on the CPU installed.
Slot	1x PCI-E x16 slot (Qty) PCI_E1 Gen PCIe 4.0 supports up to x16 (From CPU) *The supported specification depends on installed processor.
Audio	Realtek^® ALC897 Codec 7.1-Channel High Definition Audio
Storage	2x M.2 (Qty) M.2_1 Source (From CPU) supports up to PCIe 4.0 x4 / SATA mode, supports 2280/2260/2242 devices M.2_2 Source (From Chipset) supports up to PCIe 3.0 x4 , supports 22110/2280 devices 4x SATA 6G (Qty) *The supported specification depends on installed processor.
RAID	Supports RAID 0, RAID 1, RAID 5, and RAID 10 for SATA storage devices* Supports RAID 0, RAID 1, and RAID 10 for M.2 NVMe storage devices
USB	2x USB 2.0 (Rear) 4x USB 2.0 (Front) 4x USB 5Gbps Type A (Rear) 2x USB 5Gbps Type A (Front) 1x USB 5Gbps Type C (Front)
LAN	Realtek^® RTL8111H 1Gbps LAN
Internal IO	1x Power Connector(ATX_PWR) 1x Power Connector(CPU_PWR) 1x CPU Fan 1x System Fan 2x Front Panel (JFP) 1x Chassis Intrusion (JCI) 1x Front Audio (JAUD) 1x Com Port (JCOM) 3x Addressable V2 RGB LED connector (JARGB_V2) 1x RGB LED connector(JRGB) 1x TPM pin header(Support TPM 2.0) 4x USB 2.0 ports 2x USB 5Gbps Type A ports 1x USB 5Gbps Type C ports
LED FEATURE	4x EZ Debug LED
BACK PANEL PORTS	HDMI™ DisplayPort Keyboard / Mouse USB 5Gbps Type-A LAN Port Audio connectors USB 2.0 USB 5Gbps Type-A
OPERATING SYSTEM	Support for Windows^® 11 64-bit, Windows^® 10 64-bit
BOX CONTENT
PCB Info	mATX 220mmx243.84mm

CPU

Supports AM4 socket 3rd Gen AMD Ryzen™ processors, and future AMD Ryzen™ processors with BIOS update

See supported processors

Chipset

AMD B550 Chipset

Memory

4x DDR4 memory slots, support up to 128GB 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+ MHz by A-XMP OC MODE
  - 1DPC 1R max speed 4400 MHZ
  - 1DPC 2R max speed 3733 MHZ
  - 2DPC 1R max speed 3866 MHZ
  - 2DPC 2R max speed 3466 MHZ
Dual channel memory architecture
Supports non-ECC UDIMM memory
Supports un-buffered memory

Please refer www.msi.com for more information on compatible memory.

See supported memory

Expansion Slot

1x PCIe 3.0/ 4.0 x16 slot (PCI_E1)¹
3x PCIe 3.0 x16 slots, support PCIe x1 speed

The supported specification depends on installed processor.

Onboard Graphics

1x VGA port, supports resolution of 2048x1536 @50Hz, 2048x1280 @60Hz, 1920x1200 @60Hz ¹
1x DisplayPort, supports a maximum resolution of 4096x2160 @60Hz ¹
1x HDMI™ 2.1 port, supports a maximum resolution of 4096x2160 @60Hz ¹ ²
Maximum shared memory of 16 GB

Available for the processor with integrated graphics.
Graphics specifications may vary depending on the CPU installed.

Storage

ASMedia AM1064 Chipset

4x SATA 6Gb/s ports (SATA5~8 fromASM1064)

AMD B550 Chipset

4x SATA 6Gb/s ports (SATA1~4 from PCH)
2x M.2 slots (Key M)
- M2_1 slot (from AMD Processor)
  - Supports PCIe 4.0/ 3.0 x4 ¹
  - Supports SATA 6Gb/s
  - Supports 2242/ 2260/ 2280 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)
6x USB 2.0 ports (2 Type-A ports on the back panel, 4 ports through the internal USB 2.0 connectors)

AMD Processor

2x USB 3.2 Gen 1 5Gbps Type-A ports on the back panel
2x USB 3.2 Gen 2 10Gbps Type-A ports on the back panel

Audio

Realtek^® ALC892/ALC897 Codec

7.1-Channel High Definition Audio

LAN

1x Realtek^® 8RTL8111GN / RTL8111HN 1Gbps LAN controller

Wireless LAN & Bluetooth^®

AMD Wi-Fi 6E
The Wireless module is pre-installed in the M.2 (Key-E) slot
Supports MU-MIMO TX/RX, 2.4GHz/ 5GHz/ 6GHz ¹ (160MHz) up to 2.4Gbps
Supports 802.11 a/ b/ g/ n/ ac/ ax
Supports Bluetooth® 5.2 ², FIPS, FISMA

Wi-Fi 6E 6GHz may depend on every country’s regulations and will be ready in Windows 10 build 21H1 and Windows 11.
Bluetooth 5.2 will be ready in Windows 10 build 21H1 and Windows 11.

Internal connectors

1x 24-pin ATX main power connector
1x 8-pin ATX 12V power connector
8x 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
3x 4-pin system fan connectors
1x Front panel audio connector
2x System panel connectors
1x Chassis Intrusion connector
1x 4-pin RGB LED connector
1x 3-pin RAINBOW LED connector
1xTPM module connector
1x Clear CMOS jumper

Back panel ports

VGA
USB3.2 Gen 2 10Gbps Type-A
Keyboard / Mouse
LAN port
WiFi/Bluetooth
Audio connector
Flash BIOS Button
DisplayPort
HDMI™
USB 2.0
USB3.2 Gen1 5Gbps Type-A

Dimensions

Micro-ATX Form Factor
9.6 in. x 9.6 in. (24.4 cm x 24.4 cm)

MOUNTING

8 mounting holes

Box content

MSI^® does not guarantee the risks or damages caused by changing the cover.
These pictures are for reference only and may vary without notice.

© AMD, and the AMD Arrow logo, Ryzen, Radeon, FreeSync, and combinations thereof are trademarks of Advanced Micro Devices, Inc. DirectX and Microsoft are registered trademarks of Microsoft Corporation in the US and other jurisdictions. PCI Express is a registered trademark of PCI-SIG Corporation. Vulkan and the Vulkan logo are trademarks of the Khronos Group Inc. Other product names are for identification purposes only and may be trademarks of their respective companies.

Los términos HDMI™, HDMI™ High-Definition Multimedia Interface (Interfaz multimedia de alta definición), HDMI™ Trade Dress (diseño e imagen comercial HDMI™) y los logotipos HDMI™ son marcas comerciales o marcas registradas de HDMI™ Licensing Administrator, Inc.

Los nombres y logotipos de MSI, MSI gaming, dragon, y dragon shield, así como cualquier otro nombre o logotipo de servicios o productos MSI mostrados en el sitio web de MSI, son marcas registradas o marcas comerciales de MSI. Los nombres y logotipos de productos de terceros y compañías de terceros mostrados en nuestro sitio web y utilizados en los materiales son propiedad de sus respectivos propietarios y pueden ser también marcas registradas. Las marcas registradas y los materiales protegidos por derechos de autor de MSI sólo pueden utilizarse con el permiso por escrito de MSI. Cualquier derecho no expresamente concedidos en este documento.

Este producto utiliza materiales de embalaje certificados por el Forest Stewardship Council™. Al elegir este producto, ayudas a cuidar los bosques del mundo. Más información: www.fsc.org

1. Las especificaciones pueden diferir de unas zonas a otras y nos reservamos el derecho a modificarlas sin previo aviso. Por favor, compruebe las especificaciones con s2. El color del producto puede verse afectado por la fotografía y el ajuste del monitor, que puede ser diferente del producto real.

PRO B550M-B

PRO B550M-B

CPU

Chipset

Memory

Expansion Slot

Onboard Graphics

Storage

ASMedia AM1064 Chipset

AMD B550 Chipset

RAID

USB

AMD B550 Chipset

AMD Processor

Audio

Realtek® ALC892/ALC897 Codec

LAN

Wireless LAN & Bluetooth®

Internal connectors

Back panel ports

Dimensions

MOUNTING

Box content

Realtek^® ALC892/ALC897 Codec

Wireless LAN & Bluetooth^®