ASUS PRIME B840M-A WIFI AMD B840 Socket AM5 micro ATX
- AMD Socket AM5 AMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series
- PC micro ATX AMD B840 7.1 channels
- DDR5-SDRAM 4 DIMM Maximum internal memory: 192 GB
- HDD & SSD M.2, SATA III RAID support Number of storage drives supported: 7
- BIOS type: UEFI AMI 256 Mbit
- 2.5 Gigabit Ethernet Wi-Fi Wi-Fi 6E (802.11ax) Bluetooth 5.3
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.
| Processor |
| Supported processor sockets |
Socket AM5 |
| Compatible processor series |
AMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series |
| Processor socket |
Socket AM5 |
| Processor manufacturer |
AMD |
| Memory |
| Unbuffered memory |
Yes |
| Maximum internal memory |
192 GB |
| ECC сompatibility |
ECC & Non-ECC |
| Memory channels |
Dual-channel |
| Memory slots type |
DIMM |
| Number of memory slots |
4 |
| Supported memory types |
DDR5-SDRAM |
| Storage controllers |
| RAID levels |
0, 1, 5, 10 |
| RAID support |
Yes |
| Number of storage drives supported |
7 |
| Number of HDDs supported |
4 |
| Supported storage drive interfaces |
M.2, SATA III |
| Supported storage drive types |
HDD & SSD |
| Graphics |
| Parallel processing technology support |
Not supported |
| Internal I/O |
| Number of COM connectors |
1 |
| TPM connector |
Yes |
| 12V power connector |
Yes |
| Number of chassis fan connectors |
3 |
| CPU fan connector |
Yes |
| ATX Power connector (24-pin) |
Yes |
| Front panel connector |
Yes |
| Front panel audio connector |
Yes |
| S/PDIF out connector |
Yes |
| Number of SATA III connectors |
4 |
| USB 3.2 Gen 1 (3.1 Gen 1) connectors |
2 |
| USB 2.0 connectors |
2 |
| Rear panel I/O ports |
| WiFi-AP antenna jack |
1 |
| DisplayPorts quantity |
2 |
| HDMI ports quantity |
1 |
| Ethernet LAN (RJ-45) ports |
1 |
| USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity |
2 |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity |
1 |
| USB 2.0 ports quantity |
4 |
| Network |
| Bluetooth version |
5.3 |
| Bluetooth |
Yes |
| Wi-Fi standards |
Wi-Fi 6E (802.11ax) |
| Top Wi-Fi standard |
Wi-Fi 6E (802.11ax) |
| Wi-Fi |
Yes |
| Ethernet interface type |
2.5 Gigabit Ethernet |
| Ethernet LAN |
Yes |
| Features |
| Windows operating systems supported |
Windows 10 x64, Windows 11 |
| Audio output channels |
7.1 channels |
| Motherboard chipset |
AMD B840 |
| Motherboard chipset family |
AMD |
| Motherboard form factor |
micro ATX |
| Component for |
PC |
| Expansion slots |
| 3rd M.2 highest PCI Express generation |
3.0 |
| 3rd M.2 largest key size |
2280 |
| 2nd M.2 highest PCI Express generation |
4.0 |
| 2nd M.2 largest key size |
2280 |
| 1st M.2 highest PCI Express generation |
4.0 |
| 1st M.2 largest key size |
2280 |
| Number of M.2 (M) slots |
3 |
| PCI Express x16 (Gen 3.x) slots |
2 |
| PCI Express x16 (Gen 4.x) slots |
1 |
| BIOS |
| BIOS memory size |
256 Mbit |
| BIOS type |
UEFI AMI |
| Packaging data |
| Package weight |
1.52 kg |
| Package height |
67.5 mm |
| Package depth |
275 mm |
| Package width |
275 mm |
| Weight & dimensions |
| Depth |
244 mm |
| Width |
244 mm |
| Packaging content |
| Antenna included |
Yes |
| Screws included |
Yes |
| Cables included |
SATA |
