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Asus Prime B850M-A WIFI CSM AM5 mATX Motherboard (PRIME B850M-A WIFI-CSM)

ASUS Prime B850M‑A Wi‑Fi mATX motherboard: AMD AM5 socket for Ryzen 7000‑9000, B850 chipset, DDR5 up to 8000 MT/s, PCIe 5.0 x16, Wi‑Fi 6E, 2.5 Gb Ethernet, dual DisplayPort/HDMI, USB 3.2 Gen 2x2.

Asus Prime B850M-A WIFI CSM AM5 mATX Motherboard (PRIME B850M-A WIFI-CSM)
  • AMD-AM5-Asus-Prime-B850M-A-WIFI-CSM-AM5-mATX-Motherboard-PRIME-B850M-A-WIFI-CSM-9
  • AMD-AM5-Asus-Prime-B850M-A-WIFI-CSM-AM5-mATX-Motherboard-PRIME-B850M-A-WIFI-CSM-1
  • AMD-AM5-Asus-Prime-B850M-A-WIFI-CSM-AM5-mATX-Motherboard-PRIME-B850M-A-WIFI-CSM-2
  • AMD-AM5-Asus-Prime-B850M-A-WIFI-CSM-AM5-mATX-Motherboard-PRIME-B850M-A-WIFI-CSM-3
  • AMD-AM5-Asus-Prime-B850M-A-WIFI-CSM-AM5-mATX-Motherboard-PRIME-B850M-A-WIFI-CSM-5
  • AMD-AM5-Asus-Prime-B850M-A-WIFI-CSM-AM5-mATX-Motherboard-PRIME-B850M-A-WIFI-CSM-4
$308.0
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Specifications

  • Product Name:
    Asus Prime B850M-A WIFI CSM AM5 mATX Motherboard (PRIME B850M-A WIFI-CSM)
  • Model Number:
    PRIME B850M-A WIFI-CSM
  • Brand:
  • Warranty Period:
    3 Year

Description

AMD-AM5-Asus-Prime-B850M-A-WIFI-CSM-AM5-mATX-Motherboard-PRIME-B850M-A-WIFI-CSM-6
AMD-AM5-Asus-Prime-B850M-A-WIFI-CSM-AM5-mATX-Motherboard-PRIME-B850M-A-WIFI-CSM-7



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 B850 Chipset          

Memory

4 x DIMM slots, max. 256GB, DDR5 Supports   up to 8000+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, for more information please refer to CPU/Memory Support list under the Support tab of product information site or visit https://www.asus.com/support/download-center/. Adjustments will be made based on the specifications of mass-produced memory products available on the market.

* 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 5.0 x16 slot (supports x16 mode)

AMD Ryzen™ 8000 Series Desktop Processors

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

AMD B850 Chipset

1 x PCIe 4.0 x16 slot (supports 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          

Storage

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 5.0 x4 mode)

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

AMD B850 Chipset

M.2_3 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 mode)

4 x SATA 6Gb/s ports

* Specifications vary by CPU types.

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

Wireless & Bluetooth

"Wi-Fi 6E

2x2 Wi-Fi 6E (802.11ax)

Supports 2.4/5/6GHz frequency band*

Bluetooth® v5.3**

* WiFi 6E 6GHz regulatory may vary between countries, supported only in Windows 11 or later.

** The Bluetooth® version may vary, please refer to the Wi-Fi module manufacturer's website for the latest   specifications."            

USB

Rear USB (Total 8 ports)

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

2 x USB 5Gbps ports (2 x Type-A)

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)

2 x USB 5Gbps ports (2 x Type-A)

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

2 x DisplayPort

1 x HDMI™ port

1 x Wi-Fi module

1 x Realtek 2.5Gb Ethernet port

3 x Audio jacks

1 x BIOS FlashBack™ button        

Internal I/O Connectors

Fan and Cooling Related

1 x 4-pin CPU Fan header

1 x 4-pin CPU OPT Fan header

1 x 4-pin AIO Pump header

3 x 4-pin Chassis Fan headers

Power Related

1 x 24-pin Main Power connector

1 x 8-pin +12V CPU Power connectors

1 x 4-pin +12V CPU Power connectors

Storage Related

3 x M.2 slots (Key M)

4 x SATA 6Gb/s ports

USB

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

Miscellaneous

3 x Addressable RGB Gen 2 headers

1 x Clear CMOS header

1 x Chassis Intrusion header

1 x COM Port header

1 x Front Panel Audio header (F_AUDIO)

1 x S/PDIF Out header

1 x SPI TPM header (14-1 pin)

1 x 10-1 pin System Panel header              

Special Features

ASUS 5X PROTECTION III

- DIGI+ VRM

- LANGuard

- Overvoltage protection

- SafeSlot

- Stainless-steel back I/O

ASUS Q-Design

- Q-Antenna

- Q-Dashboard

- Q-DIMM

- Q-LED Core

- Q-Slot

ASUS Thermal Solution

- M.2 heatsink

- VRM heatsink design

ASUS EZ DIY

- BIOS FlashBack™ button

- BIOS FlashBack™ LED

- Pre-mounted I/O shield

- SafeSlot

Aura Sync

- Addressable RGB Gen 2 headers             

Software Features

ASUS Exclusive Software

Armoury Crate

- Aura Creator

- Aura Sync

- Fan Xpert 2+

ASUS AI Advisor

ASUS Driver Hub

ASUS GlideX

TurboV Core

ASUS CPU-Z

Norton 360 Deluxe (60 Days Free Trial)

WinRAR (40 Days Free Trial)

UEFI BIOS

ASUS EZ DIY

- ASUS CrashFree BIOS 3

- ASUS EZ Flash 3

- ASUS UEFI BIOS EZ Mode

- ASUS MyHotkey            

BIOS

256 Mb Flash ROM, UEFI AMI BIOS          

Manageability

WOL by PME, PXE            

Accessories

Cables

2 x SATA 6Gb/s cables

Miscellaneous

1 x ASUS WiFi Q-Antenna

1 x M.2 rubber package

2 x Screw packages for M.2 SSD

Documentation

1 x Quick start guide

1 x ACC Express activation key card          

Operating System

Windows® 11, Windows® 10 64-bit         

Form Factor

mATX Form Factor

9.6 inch x 9.6 inch (24.4 cm x 24.4 cm)   

 


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