ASUS

ASUS PRIME B850M-A WiFi - AM5 Micro-ATX DDR5 Motherboard, Up to 256GB, Wi-Fi 6E, 2.5Gb LAN

SKU 5490 Brand ASUS EAN13 4711636051125
AM5 Micro-ATX motherboard with DDR5 support up to 256GB (up to 8000 MHz), Wi‑Fi 6E, Bluetooth 5.3, 2.5Gb Ethernet, PCIe 4.0 x16, 4x SATA III and M.2 support.
Motherboards - Socket AM5
Motherboards - Form Factor Micro-ATX
Motherboards - Memory Type DDR5
Motherboards - Memory Slots 4
Motherboards - Max Memory Capacity 256 GB
Motherboards - PCIe Version (primary GPU) PCIe 4.0
Motherboards - SATA Ports 4

Prime 850M-A WIFI
ASUS Prime series motherboards are expertly engineered to unleash the full potential of AMD Ryzen™ 9000 series processors. The PRIME B850M-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 manufacturerAMD
Processor socketSocket AM5
Compatible processor seriesAMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series
Supported memory typesDDR5-SDRAM
Number of memory slots4
Memory slots typeDIMM
Memory channelsDual-channel
ECC сompatibilityECC & Non-ECC
Supported memory clock speed (max)8000 MHz
Maximum internal memory256 GB
Unbuffered memoryYes
Supported storage drive typesHDD & SSD
Supported storage drive interfacesM.2, SATA III
Number of HDDs supported4
Number of storage drives supported7
RAID supportYes
RAID levels0, 1, 5, 10
Parallel processing technology supportNot supported
USB 2.0 connectors2
USB 3.2 Gen 1 (3.1 Gen 1) connectors2
Number of SATA III connectors4
S/PDIF out connectorYes
Front panel audio connectorYes
ATX Power connector (24-pin)Yes
CPU fan connectorYes
Number of CPU fan connectors1
Number of chassis fan connectors3
Chassis intrusion connectorYes
EPS power connector (8-pin)Yes
Number of COM connectors1
TPM connectorYes
12V power connectorYes
USB 2.0 ports quantity4
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity2
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity2
Ethernet LAN (RJ-45) ports1
HDMI ports quantity1
DisplayPorts quantity2
Line-inYes
WiFi-AP antenna jack2
Ethernet LANYes
Ethernet interface type2.5 Gigabit Ethernet, Fast Ethernet, Gigabit Ethernet
Wi-FiYes
Top Wi-Fi standardWi-Fi 6E (802.11ax)
BluetoothYes
Bluetooth version5.3
Motherboard chipsetAMD B850
Audio output channels7.1 channels
Product colourMulticolour
Component forPC
Motherboard form factormicro ATX
Motherboard chipset familyAMD
Windows operating systems supportedWindows 10 x64, Windows 11
PCI Express x16 (Gen 4.x) slots1
BIOS typeUEFI AMI
BIOS memory size256 Mbit
Package width275 mm
Package depth275 mm
Package height67.5 mm
Package weight1.52 kg
Width244 mm
Depth244 mm
Height50 mm
Antenna includedYes
Weight930 g