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

£140.04 £116.70
AMD B840 Chipset, 4 x DIMM slots, max. 192GB, DDR5, 3 x M.2 slots and 4 x SATA 6Gb/s ports

More Information

More Information
Processor socket Socket AM5
Component for PC
Motherboard form factor Micro ATX
Compatible processor series AMD Ryzen 7000 Series,AMD Ryzen 8000 Series,AMD Ryzen 9000 Series
SKU 90MB1J20-M0EAY0
EAN 4711387797143
Manufacturer ASUS
Availability Y
PDF URLs View PDF

Description

B840M-A WIFI
ASUS Prime series motherboards are expertly engineered to unleash the full potential of AMD Ryzen™ 9000 series 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.

Specifications

Internal I/O
Number of M.2 (M) slots3
USB 3.2 Gen 2 (3.1 Gen 2) connectors0
Front panel connectorYes
12V power connectorYes
Supported storage drive interfacesM.2, SATA III
USB 2.0 connectors2
USB 3.2 Gen 1 (3.1 Gen 1) connectors2
TPM connectorYes
S/PDIF out connectorYes
Number of SATA III connectors4
Number of COM connectors1
Number of chassis fan connectors3
Front panel audio connectorYes
CPU fan connectorYes
ATX Power connector (24-pin)Yes
Technical details
Motherboard chipset familyAMD
Motherboard chipsetAMD B840
Supported processor socketsSocket AM5
Parallel processing technology supportNot supported
Motherboard form factormicro ATX
Component forPC
Audio
Audio output channels7.1 channels
Performance
Number of HDDs supported4
Supported storage drive typesHDD & SSD
Windows operating systems supportedWindows 10 x64, Windows 11
Motherboard chipset familyAMD
Motherboard chipsetAMD B840
RAID levels0, 1, 5, 10
Supported processor socketsSocket AM5
Audio output channels7.1 channels
Motherboard form factormicro ATX
Component forPC
Processor
Processor manufacturerAMD
Compatible processor seriesAMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series
Supported processor socketsSocket AM5
Processor socketSocket AM5
Memory
Number of memory slots4
Memory slots typeDIMM
Supported memory typesDDR5-SDRAM
Memory channelsDual-channel
Maximum internal memory192 GB
Unbuffered memoryYes
ECC сompatibilityECC & Non-ECC
Storage controllers
Number of HDDs supported4
Supported storage drive typesHDD & SSD
Supported storage drive interfacesM.2, SATA III
RAID levels0, 1, 5, 10
Number of storage drives supported7
RAID supportYes
Graphics
Parallel processing technology supportNot supported
Rear panel I/O ports
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity0
USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity1
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity2
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity0
USB 2.0 ports quantity4
WiFi-AP antenna jack1
VGA (D-Sub) ports quantity0
HDMI ports quantity1
Ethernet LAN (RJ-45) ports1
DVI-D ports quantity0
DisplayPorts quantity2
Network
Ethernet LANYes
Wi-FiYes
Wi-Fi standardsWi-Fi 6E (802.11ax)
Ethernet interface type2.5 Gigabit Ethernet
BluetoothYes
Bluetooth version5.3
Top Wi-Fi standardWi-Fi 6E (802.11ax)
Features
Windows operating systems supportedWindows 10 x64, Windows 11
Motherboard chipset familyAMD
Motherboard chipsetAMD B840
Supported processor socketsSocket AM5
Audio output channels7.1 channels
Motherboard form factormicro ATX
Component forPC
Expansion slots
Number of M.2 (M) slots3
PCI Express x16 (Gen 3.x) slots2
PCI Express x16 (Gen 4.x) slots1
1st M.2 largest key size2280
1st M.2 highest PCI Express generation4.0
2nd M.2 largest key size2280
2nd M.2 highest PCI Express generation4.0
3rd M.2 largest key size2280
3rd M.2 highest PCI Express generation3.0
BIOS
BIOS typeUEFI AMI
BIOS memory size256 Mbit
Packaging data
Package width275 mm
Package depth275 mm
Package height67.5 mm
Package weight1.52 kg
Software
Windows operating systems supportedWindows 10 x64, Windows 11
Weight & dimensions
Package width275 mm
Package depth275 mm
Package height67.5 mm
Package weight1.52 kg
Width244 mm
Depth244 mm
Packaging content
Cables includedSATA
Screws includedYes
Antenna includedYes
Other features
Package width275 mm
Package depth275 mm
Package height67.5 mm
Package weight1.52 kg

Delivery Details

  • UK distributors.
  • Order before 4 pm for next-day delivery.
  • Standard (2-3 days) £7.50
  • Next Day £9.99
  • Free standard delivery over £100

There are deivery surcharges to these postcodes:

Postcode Charge
IV3-40 £20
IV52-54 £20
IV63 £20
KW1-14 £20
PA10-40 £20
PH19-40 £20
PH50 £20
HS £50
IV41-51 £50
IV55-56 £50
KA27-28 £50
KW15-17 £50
PA41-49 £50
PA60-62 £50
PA76-78 £50
PH41-44 £50
ZE £50
IM £50
JE £50
GY £50
TR21-25 £50
BT £20
Suggested Products

ASUS TUF GAMING B850-E WIFI AMD B850 Socket AM5 AT...

Shop Now

GIGABYTE B760M DS3H GEN5 Motherboard - Supports In...

Shop Now

ASUS TUF GAMING B850M-PLUS II AMD B850 Socket AM5 ...

Shop Now

GIGABYTE Z790 EAGLE AX Motherboard - Supports Inte...

Shop Now

GIGABYTE B850M EAGLE WIFI6E ICE Motherboard - AMD ...

Shop Now

GIGABYTE X870 GAMING WIFI6 Motherboard - Supports ...

Shop Now

GIGABYTE X870 EAGLE WIFI7 Motherboard - Supports A...

Shop Now

GIGABYTE B850 GAMING X WIFI6E Motherboard - AMD Ry...

Shop Now

GIGABYTE B850 EAGLE WIFI6E Motherboard - AMD Ryzen...

Shop Now

ASUS PRIME B850-PLUS-CSM AMD B850 Socket AM5 ATX

Shop Now

ASUS PRIME H810M-A WIFI Intel H810 LGA 1851 (Socke...

Shop Now

GIGABYTE Z790 D AX Motherboard - Supports Intel Co...

Shop Now

ASUS PRIME B860M-A-CSM Intel B860 LGA 1851 (Socket...

Shop Now

GIGABYTE B860 DS3H Motherboard - Supports Intel Co...

Shop Now

MSI PRO B860-P WIFI motherboard Intel B860 LGA 185...

Shop Now

GIGABYTE B860M D3HP Motherboard - Intel Core Ultra...

Shop Now

ASUS PRIME B850M-K AMD B850 Socket AM5 micro ATX

Shop Now

GIGABYTE B860 GAMING X WIFI6E Motherboard - Intel ...

Shop Now

GIGABYTE B860 EAGLE WIFI6E Motherboard - Intel Cor...

Shop Now

GIGABYTE B650M GAMING WIFI6E Motherboard - AMD Ryz...

Shop Now

GIGABYTE B860M GAMING X WIFI6E Motherboard - Intel...

Shop Now

GIGABYTE B840M DS3H Motherboard - AMD Ryzen 9000 C...

Shop Now

Asrock B850 Steel Legend WiFi AMD B850 Socket AM5 ...

Shop Now

MSI MAG B550 TOMAHAWK MAX WIFI AMD B550 Socket AM4...

Shop Now

GIGABYTE B760 GAMING X DDR4 Motherboard - Supports...

Shop Now

GIGABYTE B650M AORUS ELITE AX ICE Motherboard - AM...

Shop Now

Asrock B650 PG Lightning AMD B650 Socket AM5 ATX

Shop Now

GIGABYTE B760M DS3H AX DDR4 Motherboard - Supports...

Shop Now

Asrock B650M Pro RS AMD B650 Socket AM5 micro ATX

Shop Now

Asrock B650M-HDV/M.2 AMD B650 Socket AM5 micro ATX

Shop Now

Asrock B650 Steel Legend WiFi AMD B650 Socket AM5 ...

Shop Now

Asrock B860 Pro RS WiFi Intel B860 LGA 1851 (Socke...

Shop Now

Asrock A620AI WiFi AMD A620A Socket AM5 mini ITX

Shop Now

ASUS TUF GAMING B760-PLUS WIFI D4 Intel B760 LGA 1...

Shop Now

GIGABYTE B550 AORUS ELITE V2 Motherboard - AMD Ryz...

Shop Now

MSI MAG B760 TOMAHAWK WIFI DDR4 motherboard Intel ...

Shop Now

ASUS PRO B550M-C/CSM AMD B550 Socket AM4 micro ATX

Shop Now

ASUS PRIME B550M-A WIFI II AMD B550 Socket AM4 mic...

Shop Now

Asrock B550 Pro4 AMD B550 Socket AM4 ATX

Shop Now

MSI B860 GAMING PLUS WIFI motherboard Intel B860 L...

Shop Now

ASUS TUF GAMING B850M-E WIFI AMD B850 Socket AM5 m...

Shop Now

MSI MPG B760I EDGE WIFI motherboard Intel B760 LGA...

Shop Now

Asrock B850M-X WiFi R2.0 AMD B850 Socket AM5 micro...

Shop Now

MSI PRO B840M-P WIFI6E motherboard AMD B840 Socket...

Shop Now

ASUS TUF GAMING A620-PRO WIFI AMD A620 Socket AM5 ...

Shop Now

ASUS TUF Gaming B760-Plus WIFI Intel B760 LGA 1700...

Shop Now

Asrock Z790 Pro RS Intel Z790 LGA 1700 ATX

Shop Now

GIGABYTE B850 GAMING WIFI6 Motherboard - AMD Ryzen...

Shop Now

MSI B840M GAMING PLUS WIFI6E motherboard AMD B840 ...

Shop Now

MSI MAG Z790 TOMAHAWK WIFI motherboard Intel Z790 ...

Shop Now

ASUS PRIME B860M-A WIFI Intel B860 LGA 1851 (Socke...

Shop Now

MSI PRO B850M-P WIFI motherboard AMD B850 Socket A...

Shop Now

Asrock B650M PG Lightning AMD B650 Socket AM5 micr...

Shop Now

Asrock B850 Pro RS WiFi AMD B850 Socket AM5 ATX

Shop Now

Asrock B850M Steel Legend WiFi AMD B850 Socket AM5...

Shop Now

ASUS PRIME B650M-A WIFI II AMD B650 Socket AM5 mic...

Shop Now

ASUS ROG STRIX B760-I GAMING WIFI Intel B760 LGA 1...

Shop Now

Asrock B760 PRO RS Intel B760 LGA 1700 ATX

Shop Now

ASUS ROG STRIX B650-A GAMING WIFI AMD B650 Socket ...

Shop Now

GIGABYTE B650 EAGLE AX Motherboard - AMD Ryzen 900...

Shop Now

GIGABYTE B650 GAMING X AX V2 Motherboard - AMD Ryz...

Shop Now

Asrock B760M Steel Legend WiFi Intel B760 LGA 1700...

Shop Now

GIGABYTE Z890 GAMING X WIFI7 Motherboard - Support...

Shop Now

ASUS PRIME B840-PLUS WIFI AMD B840 Socket AM5 ATX

Shop Now

MSI PRO Z790-P WIFI motherboard Intel Z790 LGA 170...

Shop Now

MSI PRO B850-P WIFI motherboard AMD B850 Socket AM...

Shop Now

MSI PRO B840-P WIFI motherboard AMD B840 Socket AM...

Shop Now

ASUS PRIME B860-PLUS WIFI Intel B860 LGA 1851 (Soc...

Shop Now

ASUS PRIME B860M-K Intel B860 LGA 1851 (Socket V1)...

Shop Now

MSI PRO B860M-A WIFI motherboard Intel B860 LGA 18...

Shop Now

ASUS PRIME B850M-A WIFI AMD B850 Socket AM5 micro ...

Shop Now

ASUS ROG STRIX B550-F GAMING AMD B550 Socket AM4 A...

Shop Now

ASUS PRIME Z790-P WIFI Intel Z790 LGA 1700 ATX

Shop Now

ASUS PRIME B550M-A AMD B550 Socket AM4 micro ATX

Shop Now

ASUS PRIME B760-PLUS Intel B760 LGA 1700 ATX

Shop Now

ASUS PRIME B760M-K Intel B760 LGA 1700 micro ATX

Shop Now

ASUS PRIME B760M-A WIFI Intel B760 LGA 1700 micro ...

Shop Now

MSI B760M GAMING PLUS WIFI motherboard Intel B760 ...

Shop Now

GIGABYTE B760 DS3H WIFI6E GEN5 Motherboard - Suppo...

Shop Now

Asrock B850M Pro-A WiFi AMD B850 Socket AM5 micro ...

Shop Now

ASUS ROG STRIX B550-A GAMING AMD B550 Socket AM4 A...

Shop Now

ASUS PRIME B650-PLUS WIFI AMD B650 Socket AM5 ATX

Shop Now

MSI B550M PRO-VDH WIFI motherboard AMD B550 Socket...

Shop Now

You may also be interested in

Compare Products
Product ASUS PRIME B840M-A WIFI AMD B840 Socket AM5 micro ATX ASUS PRIME B840M-A WIFI AMD B840 Socke...
£140.04 £116.70
MSI B550M PRO-VDH WIFI motherboard AMD B550 Socket AM4 micro ATX
Bestseller
MSI B550M PRO-VDH WIFI motherboard AMD...
£118.91 £99.09
ASUS PRIME B550M-A AMD B550 Socket AM4 micro ATX ASUS PRIME B550M-A AMD B550 Socket AM4...
£123.90 £103.25
ASUS ROG STRIX B550-F GAMING AMD B550 Socket AM4 ATX ASUS ROG STRIX B550-F GAMING AMD B550...
£157.74 £131.45
GIGABYTE B550 AORUS ELITE V2 Motherboard - AMD Ryzen 5000 CPUs, 12+2 Phases VRM, up to 4733MHz DDR4, 1xPCIe 4.0 + 1xPCIe 3.0 M.2, 2.5GbE LAN, USB 3.2 Gen 2 GIGABYTE B550 AORUS ELITE V2 Motherboa...
£113.02 £94.18
ASUS PRO B550M-C/CSM AMD B550 Socket AM4 micro ATX
Hot Product
ASUS PRO B550M-C/CSM AMD B550 Socket A...
£140.63 £117.19
SKU
90MB1J20-M0EAY0
B550M PRO-VDH WIFI
90MB14I0-M0EAY0
90MB14S0-M0EAY0
B550 AORUS ELITE V2
90MB15Q0-M0EAYC
Manufacturer
ASUS
MSI
ASUS
ASUS
Gigabyte
ASUS
Processor manufacturer
AMD
AMD
AMD
AMD
AMD
AMD
Motherboard form factor
micro ATX
micro ATX
micro ATX
ATX
ATX
micro ATX
Processor socket
Socket AM5
Socket AM4
Socket AM4
Socket AM4
Socket AM4
Socket AM4
Supported memory types
DDR5-SDRAM
DDR4-SDRAM
DDR4-SDRAM
DDR4-SDRAM
DDR4-SDRAM
DDR4-SDRAM
Component for
PC
PC
N/A
PC
PC
PC
Number of memory slots
4 to 6
4 to 6
4 to 6
4 to 6
4 to 6
4 to 6