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

SKU

90MB1J20-M0EAY0

£193.64 £161.37

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

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Tech Specs

Internal I/O
Number of M.2 (M) slots	3
USB 3.2 Gen 2 (3.1 Gen 2) connectors	0
Front panel connector	Yes
12V power connector	Yes
Supported storage drive interfaces	M.2, SATA III
USB 2.0 connectors	2
USB 3.2 Gen 1 (3.1 Gen 1) connectors	2
TPM connector	Yes
S/PDIF out connector	Yes
Number of SATA III connectors	4
Number of COM connectors	1
Number of chassis fan connectors	3
Front panel audio connector	Yes
CPU fan connector	Yes
ATX Power connector (24-pin)	Yes
Technical details
Motherboard chipset family	AMD
Motherboard chipset	AMD B840
Supported processor sockets	Socket AM5
Parallel processing technology support	Not supported
Motherboard form factor	micro ATX
Component for	PC
Audio
Audio output channels	7.1 channels
Performance
Number of HDDs supported	4
Supported storage drive types	HDD & SSD
Windows operating systems supported	Windows 10 x64, Windows 11
Motherboard chipset family	AMD
Motherboard chipset	AMD B840
RAID levels	0, 1, 5, 10
Supported processor sockets	Socket AM5
Audio output channels	7.1 channels
Motherboard form factor	micro ATX
Component for	PC
Processor
Processor manufacturer	AMD
Compatible processor series	AMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series
Supported processor sockets	Socket AM5
Processor socket	Socket AM5
Memory
Number of memory slots	4
Memory slots type	DIMM
Supported memory types	DDR5-SDRAM
Memory channels	Dual-channel
Maximum internal memory	192 GB
Unbuffered memory	Yes
ECC сompatibility	ECC & Non-ECC
Storage controllers
Number of HDDs supported	4
Supported storage drive types	HDD & SSD
Supported storage drive interfaces	M.2, SATA III
RAID levels	0, 1, 5, 10
Number of storage drives supported	7
RAID support	Yes
Graphics
Parallel processing technology support	Not supported
Rear panel I/O ports
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	0
USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity	1
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity	2
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity	0
USB 2.0 ports quantity	4
WiFi-AP antenna jack	1
VGA (D-Sub) ports quantity	0
HDMI ports quantity	1
Ethernet LAN (RJ-45) ports	1
DVI-D ports quantity	0
DisplayPorts quantity	2

Network
Ethernet LAN	Yes
Wi-Fi	Yes
Wi-Fi standards	Wi-Fi 6E (802.11ax)
Ethernet interface type	2.5 Gigabit Ethernet
Bluetooth	Yes
Bluetooth version	5.3
Top Wi-Fi standard	Wi-Fi 6E (802.11ax)
Features
Windows operating systems supported	Windows 10 x64, Windows 11
Motherboard chipset family	AMD
Motherboard chipset	AMD B840
Supported processor sockets	Socket AM5
Audio output channels	7.1 channels
Motherboard form factor	micro ATX
Component for	PC
Expansion slots
Number of M.2 (M) slots	3
PCI Express x16 (Gen 3.x) slots	2
PCI Express x16 (Gen 4.x) slots	1
1st M.2 largest key size	2280
1st M.2 highest PCI Express generation	4.0
2nd M.2 largest key size	2280
2nd M.2 highest PCI Express generation	4.0
3rd M.2 largest key size	2280
3rd M.2 highest PCI Express generation	3.0
BIOS
BIOS type	UEFI AMI
BIOS memory size	256 Mbit
Packaging data
Package width	275 mm
Package depth	275 mm
Package height	67.5 mm
Package weight	1.52 kg
Software
Windows operating systems supported	Windows 10 x64, Windows 11
Weight & dimensions
Package width	275 mm
Package depth	275 mm
Package height	67.5 mm
Package weight	1.52 kg
Width	244 mm
Depth	244 mm
Packaging content
Cables included	SATA
Screws included	Yes
Antenna included	Yes
Other features
Package width	275 mm
Package depth	275 mm
Package height	67.5 mm
Package weight	1.52 kg

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) slots	3
USB 3.2 Gen 2 (3.1 Gen 2) connectors	0
Front panel connector	Yes
12V power connector	Yes
Supported storage drive interfaces	M.2, SATA III
USB 2.0 connectors	2
USB 3.2 Gen 1 (3.1 Gen 1) connectors	2
TPM connector	Yes
S/PDIF out connector	Yes
Number of SATA III connectors	4
Number of COM connectors	1
Number of chassis fan connectors	3
Front panel audio connector	Yes
CPU fan connector	Yes
ATX Power connector (24-pin)	Yes
Technical details
Motherboard chipset family	AMD
Motherboard chipset	AMD B840
Supported processor sockets	Socket AM5
Parallel processing technology support	Not supported
Motherboard form factor	micro ATX
Component for	PC
Audio
Audio output channels	7.1 channels
Performance
Number of HDDs supported	4
Supported storage drive types	HDD & SSD
Windows operating systems supported	Windows 10 x64, Windows 11
Motherboard chipset family	AMD
Motherboard chipset	AMD B840
RAID levels	0, 1, 5, 10
Supported processor sockets	Socket AM5
Audio output channels	7.1 channels
Motherboard form factor	micro ATX
Component for	PC
Processor
Processor manufacturer	AMD
Compatible processor series	AMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series
Supported processor sockets	Socket AM5
Processor socket	Socket AM5
Memory
Number of memory slots	4
Memory slots type	DIMM
Supported memory types	DDR5-SDRAM
Memory channels	Dual-channel
Maximum internal memory	192 GB
Unbuffered memory	Yes
ECC сompatibility	ECC & Non-ECC
Storage controllers
Number of HDDs supported	4
Supported storage drive types	HDD & SSD
Supported storage drive interfaces	M.2, SATA III
RAID levels	0, 1, 5, 10
Number of storage drives supported	7
RAID support	Yes
Graphics
Parallel processing technology support	Not supported
Rear panel I/O ports
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	0
USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity	1
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity	2
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity	0
USB 2.0 ports quantity	4
WiFi-AP antenna jack	1
VGA (D-Sub) ports quantity	0
HDMI ports quantity	1
Ethernet LAN (RJ-45) ports	1
DVI-D ports quantity	0
DisplayPorts quantity	2

Network
Ethernet LAN	Yes
Wi-Fi	Yes
Wi-Fi standards	Wi-Fi 6E (802.11ax)
Ethernet interface type	2.5 Gigabit Ethernet
Bluetooth	Yes
Bluetooth version	5.3
Top Wi-Fi standard	Wi-Fi 6E (802.11ax)
Features
Windows operating systems supported	Windows 10 x64, Windows 11
Motherboard chipset family	AMD
Motherboard chipset	AMD B840
Supported processor sockets	Socket AM5
Audio output channels	7.1 channels
Motherboard form factor	micro ATX
Component for	PC
Expansion slots
Number of M.2 (M) slots	3
PCI Express x16 (Gen 3.x) slots	2
PCI Express x16 (Gen 4.x) slots	1
1st M.2 largest key size	2280
1st M.2 highest PCI Express generation	4.0
2nd M.2 largest key size	2280
2nd M.2 highest PCI Express generation	4.0
3rd M.2 largest key size	2280
3rd M.2 highest PCI Express generation	3.0
BIOS
BIOS type	UEFI AMI
BIOS memory size	256 Mbit
Packaging data
Package width	275 mm
Package depth	275 mm
Package height	67.5 mm
Package weight	1.52 kg
Software
Windows operating systems supported	Windows 10 x64, Windows 11
Weight & dimensions
Package width	275 mm
Package depth	275 mm
Package height	67.5 mm
Package weight	1.52 kg
Width	244 mm
Depth	244 mm
Packaging content
Cables included	SATA
Screws included	Yes
Antenna included	Yes
Other features
Package width	275 mm
Package depth	275 mm
Package height	67.5 mm
Package weight	1.52 kg

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Manufacturer	ASUS	Supermicro	Supermicro	Supermicro	Asrock	MSI
Processor manufacturer	AMD	Intel	Intel	Intel	AMD	AMD
Motherboard form factor	micro ATX	micro ATX	Pico ITX	Pico ITX	mini ITX	ATX
Processor socket	Socket AM5	LGA 1151 (Socket H4)	BGA 1296	BGA 1296	Socket AM4	Socket AM4
Supported memory types	DDR5-SDRAM	DDR4-SDRAM	DDR3L-SDRAM	DDR3-SDRAM	DDR4-SDRAM	DDR4-SDRAM
Component for	PC	N/A	Mini PC	Mini PC	PC	PC
Number of memory slots	4 to 6	2 to 3	1 to 2	1 to 2	2 to 3	4 to 6