ASUS PRIME B840M-A-CSM Socket AM5 micro ATX

Data sheet

Width

244 mm

Depth

244 mm

Weight

910 g

Wi-Fi

No

Audio output channels

7.1 channels

Power source type

ATX

Headphone outputs

1

Package weight

1.45 kg

Cables included

SATA

USB 2.0 ports quantity

4

Package width

275 mm

Package depth

275 mm

Package height

67.5 mm

Line-in

Yes

Windows operating systems supported

Windows 10 x64
Windows 11

Ethernet LAN (RJ-45) ports

1

HDMI ports quantity

1

Maximum internal memory

192 GB

DisplayPorts quantity

1

Ethernet LAN

Yes

Maximum resolution

7680 x 4320 pixels

HDMI version

2.1

DisplayPort version

1.4

Product colour

Grey

Processor manufacturer

AMD

USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity

1

Memory channels

Dual-channel

USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity

2

Processor socket

Socket AM5

RGB LED pin header

Yes

Screws included

Yes

Ethernet interface type

2.5 Gigabit Ethernet

RAID support

Yes

Number of SATA III connectors

4

Memory slots type

DIMM

Parallel processing technology support

Not supported

Quick installation guide

Yes

Motherboard form factor

Micro ATX

Compatible processor series

AMD Ryzen 7000 Series
AMD Ryzen 8000 Series
AMD Ryzen 9000 Series

Supported memory types

DDR5-SDRAM

Motherboard chipset family

AMD

Number of memory slots

4

Front panel connector

Yes

USB 2.0 connectors

2

ATX Power connector (24-pin)

Yes

CPU fan connector

Yes

Front panel audio connector

Yes

Supported storage drive interfaces

M.2, SATA III

Unbuffered memory

Yes

USB 3.2 Gen 1 (3.1 Gen 1) connectors

2

TPM connector

Yes

BIOS type

UEFI AMI

PCI Express x16 (Gen 3.x) slots

2

Number of chassis fan connectors

2

Number of COM connectors

1

RAID levels

0
1
5
10

Number of storage drives supported

7

Supported storage drive types

HDD & SSD

Number of M.2 (M) slots

3

Supported processor sockets

Socket AM5

EPS power connector (8-pin)

Yes

S/PDIF out connector

Yes

Number of HDDs supported

4

Supported memory clock speed (max)

7600 MHz

PCI Express x16 (Gen 4.x) slots

1

ECC сompatibility

ECC & Non-ECC

Number of CPU fan connectors

2

Number of EPS power connectors (8-pin)

1

Number of RGB LED pin headers

3

3rd M.2 largest key size

2280

1st M.2 largest key size

2280

3rd M.2 highest PCI Express generation

3.0

2nd M.2 largest key size

2280

2nd M.2 highest PCI Express generation

4.0

1st M.2 highest PCI Express generation

4.0

Warnings

Do not disassemble to avoid damage to internal components and loss of warranty.