BUSINESS ELEGANCE
The PRO Series is tailored to professionals from all walks of life. The lineup features impressive performance and high quality, while aiming to provide users incredible experience. Users who care about productivity and efficiency can definitely count on the MSI PRO Series to assist you with multitasking and increasing efficiency.

Chipset Heatsink
The chipset heatsink is designed to reduce dust and noise and also capable of maintaining high efficiency of PCH.

LIGHTNING GEN 4 PCI-E
MSI lightning Gen 4 PCI-E represents the bandwidth of a x16 interface to 64GB/s that has doubled compared to its previous generation.

REINFORCED,
HEAVY SOLDERED CONNECTIONS
MSI PCI Express Steel Armor slots are secured to the motherboard with extra solder points and support the weight of heavy graphics cards. When every advantage in games counts, Steel Armor shields the point of contact from electromagnetic interference.

Specification

Product
Product id	943421
Brand	MSI Micro-Star International
Partnr	PRO B650M-B
EAN/UPC code	4711377144797
Processor
Processor manufacturer	AMD
Processor socket	Socket AM5
Compatible processor series	AMD Ryzen 7 7th Gen, AMD Ryzen 9 7th Gen
Supported processor sockets	Socket AM5
Maximum internal memory supported by processor	96 GB
Memory
Supported memory types	DDR5-SDRAM
Number of memory slots	2
Supported memory clock speeds	6800, 6600, 6400, 6200, 6000, 5800, 5600, 5400, 5200, 5000, 4800 MHz
Maximum internal memory	96 GB
Supported memory clock speed (max)	6800 MHz
Storage controllers
Supported storage drive interfaces	M.2, SATA
RAID levels	0, 1, 10
Internal I/O
USB 2.0 connectors	4
USB 3.2 Gen 1 (3.1 Gen 1) connectors	2
USB 3.2 Gen 2 (3.1 Gen 2) connectors	1
Front panel audio connector	Y
Front panel connector	Y
ATX Power connector (24-pin)	Y
CPU fan connector	Y
Chassis intrusion connector	Y
Rear panel I/O ports
USB 2.0 ports quantity	2
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	4
Ethernet LAN (RJ-45) ports	1
VGA (D-Sub) ports quantity	1
HDMI ports quantity	1
HDMI version	2.1
DisplayPorts quantity	1
DisplayPort version	1.4
Headphone outputs	1
Microphone in	Y
Line-in	Y
Network
Ethernet LAN	Y
Ethernet interface type	2.5 Gigabit Ethernet
LAN controller	Realtek RTL8125-BG
Wi-Fi	N
Features
Component for	PC
Motherboard form factor	Micro ATX
Motherboard chipset family	AMD
Motherboard chipset	AMD B650
Audio chip	Realtek ALC897
Audio output channels	7.1 kanalen
PC health monitoring	FAN
Windows operating systems supported	Windows 11 x64
Expansion slots
PCI Express x16 (Gen 3. x) slots	1
Number of M.2 (M) slots	1
BIOS
BIOS type	UEFI AMI
BIOS memory size	256 Mbit
ACPI version	6.4
System Management BIOS (SMBIOS) version	3.5
Weight & dimensions
Width	215 mm
Depth	243.84 mm