ASUS PRIME B840M-A-CSM / B840 / AM5 / DDR5 / 2x DP / HDMI / 3x M.2 / mATX

Description

ASUS PRIME B840M-A-CSM

The board is equipped with graphics outputs for use with processors with integrated graphics core. The motherboard does not include a graphics card and without the use of a corresponding processor, these outputs will be inoperative.

CPU

Support for AMD Ryzen 7000, 8000 and 9000 series processors (Socket AM5)

Chipset

AMD B840

Memory

4× DDR5 memory slots, support up to 192 GB

DDR5 support up to 7600+ MT/s (OC)

Dual-channel memory architecture

ECC and non-ECC support, unbuffered

Support On-Die ECC function

Support for AMD Extended Profiles for Overclocking (EXPO)

ASUS Enhanced Memory Profile (AEMP) support

Slots

AMD Ryzen 9000 and 7000 series

1× PCIe 4.0 x16 slot

AMD Ryzen 8000 series

1× PCIe 4.0 x16 slot (supports x8/x4 mode)

AMD B840 chipset

2× PCIe 3.0 x16 slot (supports x1 mode)

Graphic arts

2× DisplayPort, supporting max. resolution 8K at 30 Hz (according to DP 1.4)

1× HDMI, supporting max. resolution 4K at 60 Hz (according to HDMI 2.1)

Storage

AMD Ryzen 9000 and 7000 series

1× M.2 slot, M Key, for type 2280 units (PCIe 4.0 x4 mode)

1× M.2 slot, M Key, for 2242/2260/2280 type units (PCIe 4.0 x4 mode)

AMD Ryzen 8000 series

1× M.2 slot, M Key, for type 2280 units (PCIe 4.0 x4 mode)

1× M.2 slot, M Key, for 2242/2260/2280 type units (PCIe 4.0 x4/x2 mode)

AMD B840 chipset

1× M.2 slot, M Key, for type 2280 units (PCIe 3.0 x4 mode)

4× SATA 6Gb/s

AMD RAIDXpert2 support

AMD Ryzen 9000 series

RAID 0, RAID 1, RAID 5 and RAID 10 support

AMD Ryzen 8000 series

RAID 0, RAID 1 support

AMD Ryzen 7000 series

RAID 0, RAID 1 and RAID 10 support

USB

2× USB 3.2 Gen2 (USB 3.1) ports on the back panel

2× USB-C 3.2 Gen1 (USB 3.0) ports (1 port on the back panel, 1 port available via internal USB connector)

2× USB 3.2 Gen1 (USB 3.0) ports available via internal USB connector

8× USB 2.0 ports (4 ports on the back panel, 4 ports available via internal USB connectors)

Audio

Realtek Audio Codec

7.1-channel Surround Sound High Definition Audio

HIND

1× Realtek 2.5Gigabit LAN controller

ASUS LANGuard

Internal connectors

1× 24pin ATX main power connector

1× 8pin +12V power connector

4× SATA 6Gb/s

3× M.2 slots, M Key

1× USB-C 3.2 Gen1 (USB 3.0)

1× USB 3.2 Gen1 (USB 3.0) connector (supports 2× USB 3.2 Gen1)

2x USB 2.0 connector (supports 4x USB 2.0)

1× 4pin CPU fan connector

1× 4-pin optional CPU fan connector

2× 4pin chassis fan connector

3× addressable RGB LED strip connector

1× front panel audio connector

1× SPI TPM connector

1× Clear CMOS jumper

1× 10-1pin system board connector

1× S/PDIF output connector

1× serial port connector

Rear panel ports

2× USB 3.2 Gen2 (USB 3.1)

1× USB-C 3.2 Gen1 (USB 3.0)

4× USB 2.0

2× DisplayPort

1× HDMI

1× RJ-45

3× audio jacks

1× BIOS FlashBack button

Dimensions

24.4 × 24.4 cm

Micro ATX format