Dark mode
only motherboardsin all categories
only motherboards
United Kingdom
Catalog   /   Computing   /   Components   /   Motherboards   /   Asus

Asus PRIME B840M-A WIFI (90MB1J20-M0EAY0)

Photos - Motherboard Asus PRIME B840M-A WIFI
Photos 9
from £153.73 up to £237.41 
add to listmy lists
Asus PRIME B840M-A WIFI
2025PrimeWi-FiM.2 coolingno backlight2.5 Gbps
Towards:home / office
Form Factor:micro-ATX
Socket:AMD AM5
Chipset:AMD B840
BIOS:Ami
RAM slots:DDR5 4 sl
RAM form factor:DIMM
RAM clock:7600 MHz
Sound (channels):7.1
Connectors:HDMI, M.2
Additional connectors:DisplayPort
Power connector:24 pin
Processor power:8 pin
All specifications
Specifications PRIME B840M-A WIFI
Main
Featuresfor home/office
SocketAMD AM5
Form factormicro-ATX
Power phases11 / 8+2+1 /
VRM heatsink
Size (HxW)244x244 mm
Chipset
ChipsetAMD B840
BIOSAmi
UEFI BIOS
RAM
DDR54 slot(s)
Memory moduleDIMM
Operation mode2 channel
Max. clock frequency7600 MHz / + /
Max. memory192 GB
EXPO support
Drive interface
SATA 3 (6Gbps)4
M.2 connector3
M.23xPCI-E 4x
M.2 version2x4.0, 1x3.0
M.2 SSD cooling
Integrated RAID controller
Expansion slots
PCI-E 16x slots3
PCI Modes16x/1x/1x
PCI Express4.0
Steel PCI-E connectors
Internal connections
TPM connector
USB 2.02
USB 3.2 gen11
USB C 3.2 gen11
ARGB LED strip3
Video outputs
HDMI output
HDMI versionv.2.1
DisplayPort / x2 /
DisplayPort versionv.1.4
Integrated audio
AudiochipRealtek
Sound (channels)7.1
Network interfaces
Wi-FiWi-Fi 6E (802.11ax)
BluetoothBluetooth v 5.3
LAN (RJ-45)2.5 Gbps
LAN ports1
LAN controllerRealtek
External connections
USB 2.04
USB 3.2 gen22
USB C 3.2 gen11
BIOS FlashBack
Power connectors
Main power socket24 pin
CPU power8 pin
Fan power connectors6
CPU Fan 4-pin2
CPU/Water Pump Fan 4-pin1
Chassis/Water Pump Fan 4-pin3
Official Websiteasus.com
Added to E-Catalogjanuary 2025
P/N
90MB1J20-M0EAY0

The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
How to choose a motherboard?Motherboard is the main part of any computer. Here's how to choose the right one for work, play and entertainment

Buy Asus PRIME B840M-A WIFI

All prices 7 →
When you make a purchase through links on our site, we may receive a affiliate commission.

ASUS PRIME B840M-A WIFI AMD Micro-ATX Motherboard

Scan.co.uk
Delivery: to United Kingdom
Report
£189.98
Buy in shop

ASUS PRIME B840M-A WIFI AMD B840 Socket AM5 micro ATX 90MB1J20-M0EAY0

ASUS Prime series motherboards are expertly engineered to unleash the full potential of AMD Ryzen™ 9000 ser... moreies processors. The PRIME B840M-A WIFI motherboard provides users and PC DIY builders with a range of performance optimizations via intuitive software and firmware features. It’s designed to be Advanced AI PC-ready offering the power and connectivity needed for demanding AI applications.   - AMD B840 (AM5 Socket) micro-ATX motherboard - Advanced AI PC-ready - DDR5 - PCIe 4.0 Ready - Three M.2 slots - Wi-Fi 6E - Q-Antenna - Realtek 2.5Gb Ethernet - Dual DisplayPort - HDMI™ - rear and front USB 5Gbps Type-C® - BIOS FlashBack™ - Aura Sync       AI Solutions - AI Advisor - ASUS AI Advisor allows users to explore the functionality and advanced features of ASUS motherboards in a simple and straightforward way.         Digital Power Design   PRIME B840M-A WIFI features an 8+2+1 phase power design with discrete MOSFETs ensuring efficient and stable power delivery for AMD processors plus steady performance for day-to-day use. - Six-layer PCB design - Enhanced stability and overclocking. - Power Saving - Optimize power with CPU lighting and fan settings. - Digi+ VRM control - Real-time voltage control.     Enhanced Memory & Storage Performance - Enhanced DDR5 performance - Comprehensive memory tuning options are the cornerstone of PRIME motherboards. The PRIME B840M-A WIFI maximizes the potential of your DDR5 modules from entry-level to extreme-speed kits. For entry-level modules without EXPO™ support ASUS Enhanced Memory Profile (AEMP) automatically detects memory chips and provides optimized profiles for enhanced performance. - Three M.2 slots (up to 64 Gbps) - PRIME B840M-A WIFI offers a total of three M.2 slots including two that support data-transfer speeds of up to 64 Gbps via PCIe 4.0 and one that supports PCIe 3.0. This enables quicker boot-up and app load times with OS or application drives.         Cooler by design The PRIME B840M-A WIFI motherboard is engineered with multiple onboard heatsinks and an array of hybrid fan headers to help ensure your rig stays cool and stable under intense workloads. - ASUS Fan Xpert 2+ - ASUS Fan Xpert 2+ software provides comprehensive control over fans. An Auto-Tuning mode intelligently configures all parameters with a single click. There’s also an Extreme Quiet mode that reduces chassis fan speeds to below the default minimum to keep your system whisper-quiet when performing light tasks. Fans can also be controlled via the UEFI BIOS. - Cooler compatibility - ASUS AIO coolers offer robust performance high
Quzo.co.uk
Delivery: to United Kingdom
Report
£184.27
Buy in shop

ASUS PRIME B840M-A WIFI AMD B840 Socket AM5 micro ATX 90MB1J20-M0EAY0

Internal I/ONumber of M.2 (M) slots3USB 3.2 Gen 2 (3.1 Gen 2) connectors0Front panel connectorYes12V power connectorYesSuppor... moreted storage drive interfacesM.2, SATA IIIUSB 2.0 connectors2USB 3.2 Gen 1 (3.1 Gen 1) connectors2TPM connectorYesS/PDIF out connectorYesNumber of SATA III connectors4Number of COM connectors1Number of chassis fan connectors3Front panel audio connectorYesCPU fan connectorYesATX Power connector (24-pin)YesTechnical detailsMotherboard chipset familyAMDMotherboard chipsetAMD B
ComputersDeal.com
Delivery: in United Kingdom
Report
£184.48
Buy in shop

ASUS PRIME B840M-A WIFI (AM5/B850//Micro ATX)

ASUS PRIME B840M-A WIFI (AM5/B850//Micro ATX)ASUS PRIME B840M-A WIFI (AM5/B840/DDR5/S-ATA 6Gb/s/Micro ATX)
rarewaves.com
Delivery: in United Kingdom
Report
£237.41
Buy in shop

ASUS PRIME B840M-A WIFI AMD B840 Socket AM5 micro ATX 90MB1J20-M0EAY0

Internal I/ONumber of M.2 (M) slots3USB 3.2 Gen 2 (3.1 Gen 2) connectors0Front panel connectorYes12V power connectorYesSuppor... moreted storage drive interfacesM.2, SATA IIIUSB 2.0 connectors2USB 3.2 Gen 1 (3.1 Gen 1) connectors2TPM connectorYesS/PDIF out connectorYesNumber of SATA III connectors4Number of COM connectors1Number of chassis fan connectors3Front panel audio connectorYesCPU fan connectorYesATX Power connector (24-pin)YesTechnical detailsMotherboard chipset familyAMDMotherboard chipsetAMD B
itsupplies.uk
Delivery: to United Kingdom
Report
£153.73
Buy in shop

Asus 90MB1J20-M0EAY0

The ASUS PRIME B840M-A WIFI is designed to take full advantage of AMD Ryzen™ 9000 processors. With advanced customization fea... moretures, efficient cooling, and next-generation connectivity, this motherboard is ideal for both advanced AI applications and DIY PC enthusiasts looking to optimize performance.Features:AI Advisor:- ASUS AI Advisor easily guides users to explore and understand the advanced functions and features of this motherboard.Digital Power Design:- 8+2+1 power phase configuration with discrete MOSFETs ensures stable and efficient power delivery, suitable for high-performance processors.- It offers stability for both everyday tasks and demanding workloads.Improved DDR5 Performance:- AEMP (ASUS Enhanced Memory Profile): Automatically detects DDR5 modules without EXPO™ support and applies optimized profiles for better performance.- EXPO™ Support: Supports AMD extended overclocking profiles to achieve faster than stock DDR5 speeds.- Advanced Options in UEFI BIOS: Offers extensive settings for users looking to customize their memory performance.Ultra-fast M.2 storage:Three M.2 slots:- Two PCIe 4.0 compliant for transfer speeds up to 64Gbps.- An additional PCIe 3.0, ideal for secondary storage units.- Allows for much faster boot and application loading times.Refrigeration and Temperature Control:- Advanced Thermal Design- Integrated heat sinks for key components.- Hybrid fan headers ensure efficient cooling and thermal stability under high load scenarios.ASUS Fan Xpert 2+:- Auto-Tuning: Automatic configuration of fan parameters with a single click.- Extreme Quiet Mode: Reduces fan speeds for quiet operation during light tasks.- Additional control available through the UEFI BIOS.Liquid Cooling Compatibility:- Compatible with ASUS AIO liquid cooling solutions, enabling customized aesthetic designs and robust thermal performance.Connectivity and Expansion:WiFi 6E:- Uses the 6 GHz spectrum to deliver ultra-fast speeds, higher capacity, and better performance in crowded environments.Realtek 2.5Gb Ethernet:- It offers fast data transfer, with less CPU overhead and smooth network performance.PCIe 4.0 and USB Type-C:- Supports high-performance components and modern connections for advanced peripherals.Specifications:CPU:- AMD Socket AM5 compatible with AMD Ryzen 9000, 8000 and 7000 Series Desktop Processors.Chipset:- AMD B840 Chipset.Memory:- 4 DIMM slots, max 192GB, DDR5.- Support for up to 7600+MT/s (OC) using Ryzen 9000, 8000, and 7000 Series Processors.- Support for ECC and Non-ECC, unbuffered memory.- Dual channel memory architecture.- AMD Extended Profiles for Overclocking (EXPO) and ASUS Enhanced Memory Profile (AEMP).- Support for On-Die ECC on Non-ECC DDR5 memory.Graphics:- 2 DisplayPort ports (max. 8K30Hz, DisplayPort 1.4).- 1 HDMI™ port (max. 4K60Hz, HDMI 2.1).- Graphics specifications subject to CPU.Expansion Slots:- Ryzen 9000 and 7000 Series: 1 x PCIe 4.0 x16 (x16 mode).- Ryzen 8000 Series: 1 x PCIe 4.0 x16 (x8/x4 mode).- AMD
Tradeinn.com
Delivery: in United Kingdom
Report
£186.49
Buy in shop

Asus ASUS Prime B840M-A WiFi

Socket AM5 Mainboard / Memory Slot 4 / DDR5 / Storage Connector 3 x M.2 / Micro ATX / Number of PCI-X x 16 Slots 3
Idealo.co.uk
Delivery: in United Kingdom
Report
£175.99
Buy in shop
Series Asus Prime (stability/durability)Compare using chart →
Asus PRIME B650M-K
from £103.99 
micro-ATX, socket AMD AM5, chipset AMD B650, 2 x DDR5, DIMM, 6400 MHz, USB C, HDMI, M.2, LAN 2.5 Gbps, M.2 cooling, no backlight
Asus PRIME B450M-A II
from £70.87 
micro-ATX, socket AMD AM4, chipset AMD B450, 4 x DDR4, DIMM, 4400 MHz, USB C, HDMI, M.2, > 4 SATA3, no backlight
Asus PRIME B450M-K II
from £61.55 
micro-ATX, socket AMD AM4, chipset AMD B450, 2 x DDR4, DIMM, 4400 MHz, USB C, HDMI, M.2, no backlight
Asus PRIME B650M-R
from £98.62 
micro-ATX, socket AMD AM5, chipset AMD B650, 2 x DDR5, DIMM, 7200 MHz, USB C, HDMI, M.2, LAN 2.5 Gbps, no backlight
Asus PRIME B550M-A
from £99.99 
micro-ATX, socket AMD AM4, chipset AMD B550, 4 x DDR4, DIMM, 4400 MHz, USB C, HDMI, M.2, no backlight
Asus PRIME A520M-K
from £53.38 
micro-ATX, socket AMD AM4, chipset AMD A520, 2 x DDR4, DIMM, 4600 MHz, USB C, HDMI, M.2, no backlight
Asus PRIME Z790-A WIFI
from £227.04 
ATX, socket Intel LGA 1700, chipset Intel Z790, 4 x DDR5, DIMM, 7200 MHz, USB C, HDMI, DisplayPort, M.2, LAN 2.5 Gbps, Wi-Fi, M.2 cooling
Asus PRIME B660M-A WIFI D4
from £127.49 
micro-ATX, socket Intel LGA 1700, chipset Intel B660, 4 x DDR4, DIMM, 5333 MHz, USB C, HDMI, DisplayPort, M.2, Wi-Fi, M.2 cooling, no backlight
Asus PRIME B550M-K
from £84.49 
micro-ATX, socket AMD AM4, chipset AMD B550, 4 x DDR4, DIMM, 4400 MHz, USB C, HDMI, M.2, no backlight
Asus PRIME B660M-K D4
from £87.74 
micro-ATX, socket Intel LGA 1700, chipset Intel B660, 2 x DDR4, DIMM, 5333 MHz, USB C, HDMI, M.2, no backlight
Asus PRIME B550M-A WIFI II
from £99.99 
micro-ATX, socket AMD AM4, chipset AMD B550, 4 x DDR4, DIMM, 4866 MHz, USB C, HDMI, M.2, Wi-Fi, no backlight
Asus PRIME B760-PLUS D4
from £114.65 
ATX, socket Intel LGA 1700, chipset Intel B760, 4 x DDR4, DIMM, 5066 MHz, USB C, HDMI, DisplayPort, M.2, LAN 2.5 Gbps, M.2 cooling, no backlight
Asus PRIME A620M-K
from £81.99 
micro-ATX, socket AMD AM5, chipset AMD A620, 2 x DDR5, DIMM, 6400 MHz, USB C, HDMI, M.2, no backlight
Asus PRIME A520M-R
from £49.70 
micro-ATX, socket AMD AM4, chipset AMD A520, 2 x DDR4, DIMM, 5100 MHz, USB C, HDMI, M.2, no backlight
Asus PRIME B650-PLUS
from £133.99 
ATX, socket AMD AM5, chipset AMD B650, 4 x DDR5, DIMM, 7600 MHz, USB C, HDMI, DisplayPort, M.2, LAN 2.5 Gbps, M.2 cooling, no backlight
Asus PRIME H610M-A WIFI DDR4
from £74.99 
micro-ATX, socket Intel LGA 1700, chipset Intel H610, 2 x DDR4, DIMM, 3200 MHz, USB C, HDMI, DisplayPort, M.2, Wi-Fi, no backlight
Asus PRIME B760-PLUS
from £114.65 
ATX, socket Intel LGA 1700, chipset Intel B760, 4 x DDR5, DIMM, 7200 MHz, USB C, HDMI, DisplayPort, M.2, LAN 2.5 Gbps, M.2 cooling, no backlight
Asus PRIME H510M-A
from £73.56 
micro-ATX, socket Intel LGA 1200, chipset Intel H510, 2 x DDR4, DIMM, 3200 MHz, USB C, HDMI, DisplayPort, M.2, M.2 cooling, no backlight
Asus PRIME B650M-A WIFI II
from £135.50 
micro-ATX, socket AMD AM5, chipset AMD B650, 4 x DDR5, DIMM, 6400 MHz, USB C, HDMI, DisplayPort, M.2, LAN 2.5 Gbps, Wi-Fi, no backlight
Asus PRIME Z790-P WIFI DDR5
from £199.99 
ATX, socket Intel LGA 1700, chipset Intel Z790, 4 x DDR5, DIMM, 7200 MHz, USB C, HDMI, DisplayPort, M.2, LAN 2.5 Gbps, Wi-Fi, M.2 cooling, no backlight
AccessoriesAll accessories for Asus PRIME B840M-A WIFI →
We recommendCompare using chart →
Gigabyte B550 Gaming X V2
from £90.65 
ATX, socket AMD AM4, chipset AMD B550, 4 x DDR4, DIMM, 4733 MHz, USB C, HDMI, M.2, no backlight
Asus TUF GAMING B550-PLUS
from £112.75 
ATX, socket AMD AM4, chipset AMD B550, 4 x DDR4, DIMM, 4600 MHz, USB C, HDMI, DisplayPort, M.2, > 4 SATA3, LAN 2.5 Gbps, CrossFire, M.2 cooling
MSI B650 GAMING PLUS WIFI
from £138.63 
ATX, socket AMD AM5, chipset AMD B650, 4 x DDR5, DIMM, 7200 MHz, USB C, HDMI, DisplayPort, M.2, LAN 2.5 Gbps, CrossFire, Wi-Fi, M.2 cooling, no backlight
ASRock B650M-HDV/M.2
from £94.35 
micro-ATX, socket AMD AM5, chipset AMD B650, 2 x DDR5, DIMM, 7200 MHz, USB C, HDMI, DisplayPort, M.2, LAN 2.5 Gbps, CrossFire, M.2 cooling, no backlight
ASRock B650M Pro RS
from £114.21 
micro-ATX, socket AMD AM5, chipset AMD B650, 4 x DDR5, DIMM, 7200 MHz, USB C, HDMI, DisplayPort, M.2, LAN 2.5 Gbps, CrossFire, M.2 cooling, no backlight
Asus PRIME B650M-K
from £103.99 
micro-ATX, socket AMD AM5, chipset AMD B650, 2 x DDR5, DIMM, 6400 MHz, USB C, HDMI, M.2, LAN 2.5 Gbps, M.2 cooling, no backlight
Gigabyte B550 AORUS ELITE V2
from £103.50 
ATX, socket AMD AM4, chipset AMD B550, 4 x DDR4, DIMM, 4733 MHz, USB C, HDMI, DisplayPort, M.2, LAN 2.5 Gbps, M.2 cooling
Gigabyte B650 GAMING X AX V2
from £136.33 
ATX, socket AMD AM5, chipset AMD B650, 4 x DDR5, DIMM, 8000 MHz, USB C, HDMI, DisplayPort, M.2, LAN 2.5 Gbps, Wi-Fi, M.2 cooling, no backlight
Asus TUF GAMING B850M-PLUS WIFI
from £224.53 
micro-ATX, socket AMD AM5, chipset AMD B850, 4 x DDR5, DIMM, 8000 MHz, USB C, HDMI, DisplayPort, M.2, LAN 2.5 Gbps, Wi-Fi, M.2 cooling
ASRock B650 LiveMixer
from £130.09 
ATX, socket AMD AM5, chipset AMD B650, 4 x DDR5, DIMM, 6400 MHz, USB C, HDMI, DisplayPort, M.2, LAN 2.5 Gbps, CrossFire, M.2 cooling, no backlight
Asus TUF GAMING B550M-PLUS WIFI II
from £111.99 
micro-ATX, socket AMD AM4, chipset AMD B550, 4 x DDR4, DIMM, 4866 MHz, USB C, HDMI, DisplayPort, M.2, LAN 2.5 Gbps, Wi-Fi, M.2 cooling
Asus TUF GAMING B850-PLUS WIFI
from £229.89 
ATX, socket AMD AM5, chipset AMD B850, 4 x DDR5, DIMM, 8000 MHz, USB C, HDMI, DisplayPort, M.2, LAN 2.5 Gbps, Wi-Fi, M.2 cooling
Filters
Models
on sale all
Brands
Asus (features) 
home / office 
compact PCs 
gaming 
overclocking 
HEDT (High-End DeskTop) 
server 
Questions and requests regarding model selection →
Catalog
  /  
Motherboards
  /  
Asus
  /  
Motherboard Asus PRIME B840M-A WIFI
E-Catalog — catalog of descriptions and prices for household and computer equipment, electronics, goods for home and office. We know where to find buy motherboards Asus PRIME B840M-A WIFI at the best price in online stores. Reprinting of any materials is only permitted with the written consent of the editorial office.
About us
Other countries
Did you find an error on this page? Highlight it and click Ctrl+Enter.
Or use the "Report an error in the description" feature under the table with the specifications of the specific model.
Your Region
  • United Kingdom, en
  • United Kingdom
ID
© E-Catalog, 2001—2025
Dark mode