Asus PRIME B840M-A-CSM AM5 Micro ATX Motherboard

SPECIFICATIONS:

CPU:

AMD Socket AM5 for AMD Ryzen™ 9000 & 8000 & 7000 Series Desktop Processors*

* Refer to https://www.asus.com/support/download-center/ for CPU support list.

Chipset: AMD B840 Chipset

Memory:

4 x DIMM slots, max. 256GB, DDR5

Supports up to 7600+MT/s (OC) with Ryzen™ 9000 & 8000 & 7000 Series Processors, ECC and Non-ECC, Un-buffered DIMM*

Dual channel memory architecture

Supports AMD Extended Profiles for Overclocking (EXPO™)

ASUS Enhanced Memory Profile (AEMP)

* Supported memory types, data rate (speed), and number of DRAM modules vary depending on the CPU and memory configuration

* Non-ECC, un-buffered DDR5 memory supports On-Die ECC function.

Graphics:

2 x DisplayPort**

1 x HDMI™ port***

* Graphics specifications may vary between CPU types. Please refer to AMD CPU specifications.

** Supports max. 8K@30Hz as specified in DisplayPort 1.4.

*** Supports 4K@60Hz as specified in HDMI 2.1.

Expansion Slots:

AMD Ryzen™ 9000 & 7000 Series Desktop Processors*

1 x PCIe 4.0 x16 slot (supports x16 mode)

AMD Ryzen™ 8000 Series Desktop Processors

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

AMD B840 Chipset

2 x PCIe 3.0 x16 slots (support x1 mode)

* Please check the PCIe bifurcation table on the support site (https://www.asus.com/support/FAQ/1037507/).

** Specifications vary by CPU types.

To ensure compatibility of the device installed, please refer to https://www.asus.com/support/download-center/ for the list of supported peripherals.

Storage:

Total supports 3 x M.2 slots and 4 x SATA 6Gb/s ports

AMD Ryzen™ 9000 & 7000 Series Desktop Processors

M.2_1 slot (Key M), type 2280 (supports PCIe 4.0 x4 mode)

M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 mode)

AMD Ryzen™ 8000 Series Desktop Processors

M.2_1 slot (Key M), type 2280 (supports PCIe 4.0 x4 mode)

M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4/x2 mode)*

AMD B840 Chipset

M.2_3 slot (Key M), type 2280 (supports PCIe 3.0 x4 mode)

4 x SATA 6Gb/s ports

* Specifications vary by CPU types.

RAID:

AMD RAIDXpert2 Technology

Ryzen™ 9000 Series Processors: RAID 0/1/5/10

Ryzen™ 8000 Series Processors: RAID 0/1

Ryzen™ 7000 Series Processors: RAID 0/1/10

Ethernet:

1 x Realtek 2.5Gb Ethernet

ASUS LANGuard

Rear USB (Total 7 ports):

2 x USB 10Gbps ports (2 x Type-A)

1 x USB 5Gbps port (1 x USB Type-C®)

4 x USB 2.0 ports (4 x Type-A)

Front USB (Total 7 ports)

1 x USB 5Gbps connector (supports USB Type-C®)

1 x USB 5Gbps header supports 2 additional USB 5Gbps ports

2 x USB 2.0 headers support 4 additional USB 2.0 ports

* USB Type-C® power delivery output: max. 5V/3A

Audio:

Realtek 7.1 Surround Sound High Definition Audio CODEC*

Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking

Supports up to 24-Bit/192 kHz playback

Audio Features:

Audio Shielding

Premium audio capacitors

Dedicated audio PCB layers

*A chassis with an HD audio module in the front panel is required to support 7.1 Surround Sound audio output.

Back Panel I/O Ports:

2 x USB 10Gbps ports (2 x Type-A)

1 x USB 5Gbps port (1 x USB Type-C®)

4 x USB 2.0 ports (4 x Type-A)

2 x DisplayPort

1 x HDMI™ port

1 x Realtek 2.5Gb Ethernet port

3 x Audio jacks

1 x BIOS FlashBack™ button

Operating System: Windows 11, Windows 10 64-bit

Form Factor: Micro ATX

WHAT’S IN THE BOX:

Asus PRIME B840M-A-CSM AM5 Micro ATX Motherboard – Black x1

SATA Cables x2

M.2 rubber package x1

Screw Package for M.2 SSD x2

Quick Start Guide x1

3 Year Warranty