Model

Brand	MSI
Series	PRO
Model	B550M PRO-VDH WIFI

Supported CPU

CPU Socket Type	AM4
CPU Type	Supports AM4 socket 3rd Gen AMD Ryzen processors, and future AMD Ryzen processors with BIOS update

Chipsets

Chipset	AMD B550

Memory

Number of Memory Slots	4x288pin (DDR4)
Memory Standard	Supports DDR4 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 4400 MHZ 1DPC 2R max speed 3733 MHZ 2DPC 1R max speed 3866 MHZ 2DPC 2R max speed 3466 MHZ
Maximum Memory Supported	128GB
Channel Supported	Dual Channel

Expansion Slots

PCI Express 4.0 x16	1 x PCIe 4.0/3.0 x16 slot (PCI_E1) * * The supported specification depends on installed processor.
PCI Express 3.0 x16	1 x PCI Express 3.0 x16
PCI Express x16	1 x PCI Express x16
PCI Express x1	2 x PCIe 3.0 x1 slots

Storage Devices

SATA 6Gb/s	4 x SATA 6Gb/s
M.2	2 x M.2 slots (Key M) M2_1 slot (from AMD Processor) Supports PCIe 4.0/3.0 x4 * Supports SATA 6Gb/s Supports 2242/2260/2280 storage devices M2_2 slot (from AMD B550 chipset) Supports PCIe 3.0 x4 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 VGA port, supports resolution of 2048x1536 @50Hz, 2048x1280 @60Hz, 1920x1200 @60Hz * 1 x DisplayPort, supports a maximum resolution of 4096x2160 @60Hz * 1 x HDMI 2.1 port, supports a maximum resolution of 4096x2160 @60Hz *,** Maximum shared memory of 16GB * Available for the processor with integrated graphics. ** 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 8111HN
Max LAN Speed	1Gbps
Wireless LAN	Intel Dual Band Wireless-AC 3168 Supports Wi-Fi 802.11 a/b/g/n/ac, dual band (2.4 GHz, 5 GHz) up to 433 Mbps speed.
Bluetooth	Supports Dual Mode Bluetooth 2.1, 2.1+EDR, 3.0, 4.0, BLE, 4.2

Rear Panel Ports

Back I/O Ports	4 x USB 3.1 Gen 1
USB 3.0	4 x USB 3.0

Internal I/O Connectors

Onboard USB	1 x USB 3.2 Gen 1 5Gbps Type-C port 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 water-pump fan connector 3 x 4-pin system fan connectors 1 x Front panel audio connector 2 x System panel connectors 1 x Serial port connector 1 x Chassis Intrusion connector 2 x 4-pin RGB LED connectors 2 x 3-pin RAINBOW LED connectors 1 x TPM module connector 1 x Clear CMOS jumper

Physical Spec

Form Factor	Micro ATX
LED Lighting	RGB
Dimensions (W x L)	9.6" x 9.6"
Power Pin	1 x 24-pin ATX main power connector 1 x 8-pin ATX 12V power connector

Windows 11 Compatibility

Windows 11	Supported

Features

Features

Support for 3rd Gen AMD Ryzen processors and future AMD Ryzen processors with BIOS update Supports DDR4 Memory, up to 4400(OC) MHz Lightning Fast Experience: PCIe 4.0, Lightning Gen4 x4 M.2 with M.2 Shield Frozr Premium Thermal Solution: 7W/mK pad, additional choke thermal pad and M.2 Shield Frozr are built for high performance system and non-stop works Powerful Design: Core Boost, Digital PWM IC, 2oz Thickened Copper PCB, Creator Genie, DDR4 Boost 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