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Asus PRIME B850M-A WIFI

Photos - Motherboard Asus PRIME B850M-A WIFI
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Asus PRIME B850M-A WIFI
Towards:home / office
Form Factor:micro-ATX
Socket:AM5
Chipset:AMD B850
BIOS:Ami
RAM slots:DDR5 4 sl
RAM form factor:DIMM
RAM clock:8000 MHz
Sound (channels):7.1
Connectors:HDMI, M.2
Additional connectors:DisplayPort
Power connector:24-pin
Processor power:8+4-pin

Reliable, well-balanced, compact micro-ATX motherboard based on the AMD B850 chipset. Equipped with an AMD AM5 processor socket and optimized for the latest Ryzen processors from the 7000, 8000, and 9000 series (socket AM5). Positioned in the mid-price segment, it represents the Asus Prime 2025 series. Although most Prime models are more aligned with office-budget levels, this board's features can provide a reliable foundation for a mid-level gaming or work PC with ample memory, fast storage, and a powerful Ryzen 7 9700X level processor.

The Asus PRIME B850M-A WIFI boasts a solid component base (11 power phases, VRM and PCH heatsinks, quality inductors, and durable capacitors), thoughtful layout, and useful tools for additional system tuning and monitoring. Despite its compact size, the board is equipped with a modern set of interfaces, including a pair of reinforced PCIe 16x slots, three high-speed M.2 ports (one Gen5, two others Gen4), and four SATA connectors with RAID support. Unlike many miniature motherboards, it features four full-fledged DDR5 memory slots with a maximum frequency of 8000 MHz and EXPO profile support. The device's networking capabilities are handled by a Realtek controller (2.5 Gb/s bandwidth) with support for Wi-Fi 6E and Bluetooth 5.3.

All specifications
Specifications PRIME B850M-A WIFI
Main
Featuresfor home/office
SocketAM5
Form factormicro-ATX
Power phases11 / 8+2+1 /
VRM heatsink
Size (HxW)244x244 mm
Chipset
ChipsetAMD B850
BIOSAmi
UEFI BIOS
RAM
DDR54 slot(s)
Memory moduleDIMM
Operation mode2 channel
Max. clock frequency8000 MHz
Max. memory256 GB
EXPO support
Drive interface
SATA 3 (6Gbps)4
M.2 connector3
M.23xPCIe 4x
M.2 version1x5.0, 2x4.0
M.2 SSD cooling
Integrated RAID controller
Expansion slots
PCIe 16x slots2 pcs
PCIe support5.0
Steel PCIe connectors
Internal connections
TPM connector
USB-A 2.02 pcs
USB-A 5Gbps1 pcs
USB-C 5Gbps1 pcs
ARGB LED strip3
Video outputs
HDMI output
HDMI versionv2.1
DisplayPort / x2 /
DisplayPort versionv.1.4
Integrated audio
AudiochipRealtek
Sound (channels)7.1
Network interfaces
Wi-FiWi-Fi 6E (802.11ax)
BluetoothBluetooth v5.3
LAN (RJ-45)2.5 Gbps
LAN ports1
LAN controllerRealtek
External connections
USB-A 2.04 pcs
USB-A 5Gbps2 pcs
USB-A 10Gbps2 pcs
BIOS FlashBack
Power connectors
Main power socket24-pin
CPU power8+4-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-CatalogMay 2025
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.
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