MSI PRO B840M-B motherboard AMD B840 Socket AM5 micro ATX

Processor
Compatible processor series: AMD Ryzen 7000 Series, AMD Ryzen 9000 Series, AMD Ryzen 8000 Series
Processor manufacturer: AMD
Supported processor sockets: Socket AM5
Processor socket: Socket AM5

Features
Motherboard chipset family: AMD
Windows operating systems supported: Windows 11 x64
Motherboard form factor: micro ATX
Audio output channels: 7.1 channels
Audio chip: Realtek ALC897
Product colour: Black
Motherboard chipset: AMD B840

Memory
Memory channels: Dual-channel
Supported memory types: DDR5-SDRAM
Memory slots type: DIMM
ECC сompatibility: Non-ECC
Supported memory clock speeds: 8000, 4800, 5600
Maximum internal memory: 128 GB
Supported memory clock speed (max): 8000 MHz
Number of memory slots: 2

Weight & dimensions
Width: 226 mm
Depth: 243.8 mm

Network
Ethernet LAN: Yes
LAN controller: Realtek RTL8125D
Ethernet interface type: 2.5 Gigabit Ethernet

Internal I/O
USB 3.2 Gen 1 (3.1 Gen 1) connectors: 2
USB 3.2 Gen 2 (3.1 Gen 2) connectors: 1
Total number of SATA connectors: 4
Number of SATA III connectors: 4
USB 2.0 connectors: 4
Number of CPU fan connectors: 1
RGB LED pin header: Yes
Number of RGB LED pin headers: 3

Storage controllers
Number of storage drives supported: 6
RAID support: Yes
RAID levels: 10, 1, 0
Supported storage drive interfaces: M.2, SATA III
Number of HDDs supported: 4
Supported storage drive types: HDD & SSD

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
HDMI version: 2.1
HDMI ports quantity: 1
Ethernet LAN (RJ-45) ports: 1
VGA (D-Sub) ports quantity: 1

Expansion slots
Number of M.2 (M) slots: 2
1st M.2 highest PCI Express generation: 4.0
2nd M.2 highest PCI Express generation: 4.0
1st M.2 largest key size: 2280
2nd M.2 largest key size: 2280