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.

Specification

Product
Product id	996612
Brand	AsusTek
Partnr	90MB1J20-M0EAY0
EAN/UPC code	4711387797143
Warranty (months)	36 months
Processor
Processor manufacturer	AMD
Processor socket	Socket AM5
Compatible processor series	AMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series
Supported processor sockets	Socket AM5
Memory
Supported memory types	DDR5-SDRAM
Number of memory slots	4
Memory slots type	DIMM
Memory channels	Dual-channel
ECC сompatibility	ECC & non-ECC
Maximum internal memory	192 GB
Unbuffered memory	Y
Storage controllers
Supported storage drive types	HDD & SSD
Supported storage drive interfaces	M.2, SATA III
Number of HDDs supported	4
Number of storage drives supported	7
RAID levels	0, 1, 5, 10
RAID support	Y
Graphics
Parallel processing technology support	Not supported
Internal I/O
USB 2.0 connectors	2
USB 3.2 Gen 1 (3.1 Gen 1) connectors	2
Number of SATA III connectors	4
S/PDIF out connector	Y
Front panel audio connector	Y
Front panel connector	Y
ATX Power connector (24-pin)	Y
CPU fan connector	Y
Number of chassis fan connectors	3
TPM connector	Y
12V power connector	Y
Number of COM connectors	1
Rear panel I/O ports
USB 2.0 ports quantity	4
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
Ethernet LAN (RJ-45) ports	1
HDMI ports quantity	1
DisplayPorts quantity	2
WiFi-AP antenna jack	1
Network
Ethernet LAN	Y
Ethernet interface type	2.5 Gigabit Ethernet
Wi-Fi	Y
Top Wi-Fi standard	Wi-Fi 6E (802.11ax)
Wi-Fi standards	Wi-Fi 6E (802.11ax)
Bluetooth	Y
Bluetooth version	5.3
Features
Component for	PC
Motherboard form factor	Micro ATX
Motherboard chipset family	AMD
Motherboard chipset	AMD B840
Audio output channels	7.1 kanalen
Windows operating systems supported	Windows 10 x64, Windows 11
Expansion slots
PCI Express x16 (Gen 3. x) slots	2
PCI Express x16 (Gen 4. x) slots	1
Number of M.2 (M) slots	3
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
Weight & dimensions
Width	244 mm
Depth	244 mm
Packaging content
Cables included	SATA
Screws included	Y
Antenna included	Y
Other features
Package weight	1520 g