ASUS PRIME B840M-A-CSM AMD B840 Socket AM5 micro ATX

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

Graphics
Parallel processing technology support: Not supported
Maximum resolution: 7680 x 4320 pixels

Features
Audio output channels: 7.1 channels
Motherboard form factor: micro ATX
Power source type: ATX
Motherboard chipset: AMD B840
Motherboard chipset family: AMD
Component for: PC
Product colour: Grey
Windows operating systems supported: Windows 10 x64, Windows 11

Memory
Unbuffered memory: Yes
Maximum internal memory: 192 GB
Supported memory types: DDR5-SDRAM
Memory slots type: DIMM
ECC сompatibility: ECC & Non-ECC
Supported memory clock speed (max): 7600 MHz
Memory channels: Dual-channel
Number of memory slots: 4

Weight & dimensions
Depth: 244 mm
Width: 244 mm

Network
Wi-Fi: No
Ethernet LAN: Yes
Ethernet interface type: 2.5 Gigabit Ethernet

Internal I/O
Number of SATA III connectors: 4
ATX Power connector (24-pin): Yes
S/PDIF out connector: Yes
USB 2.0 connectors: 2
Front panel audio connector: Yes
Number of chassis fan connectors: 2
CPU fan connector: Yes
USB 3.2 Gen 1 (3.1 Gen 1) connectors: 2
Number of EPS power connectors (8-pin): 1
Front panel connector: Yes
Number of RGB LED pin headers: 3
Number of COM connectors: 1
TPM connector: Yes
Number of CPU fan connectors: 2
EPS power connector (8-pin): Yes
RGB LED pin header: Yes

BIOS
BIOS type: UEFI AMI
BIOS memory size: 256 Mbit

Packaging data
Package weight: 1.45 kg
Package width: 275 mm
Package depth: 275 mm
Package height: 67.5 mm

Packaging content
Screws included: Yes
Cables included: SATA

Storage controllers
RAID levels: 5, 1, 10, 0
Supported storage drive types: HDD & SSD
RAID support: Yes
Supported storage drive interfaces: M.2, SATA III
Number of storage drives supported: 7
Number of HDDs supported: 4

Rear panel I/O ports
Ethernet LAN (RJ-45) ports: 1
DisplayPorts quantity: 1
USB 2.0 ports quantity: 4
DisplayPort version: 1.4
HDMI version: 2.1
HDMI ports quantity: 1
Headphone outputs: 1
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity: 2
USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity: 1
Line-in: Yes

Expansion slots
PCI Express x16 (Gen 3.x) slots: 2
Number of M.2 (M) slots: 3
3rd M.2 highest PCI Express generation: 3.0
2nd M.2 largest key size: 2280
3rd M.2 largest key size: 2280
2nd M.2 highest PCI Express generation: 4.0
1st M.2 highest PCI Express generation: 4.0
PCI Express x16 (Gen 4.x) slots: 1
1st M.2 largest key size: 2280

Other features
Weight: 910 g
Quick installation guide: Yes