Picture of ASUS AMD B850M PRIME B850M-A WIFI-CSM (AM5) mATX Motherboard 4xDDR5, Max 256GB, 1 x PCIe 5.0 x16 slot, 4 x SATA

ASUS AMD B850M PRIME B850M-A WIFI-CSM (AM5) mATX Motherboard 4xDDR5, Max 256GB, 1 x PCIe 5.0 x16 slot, 4 x SATA

Manufacturer: ASUS
Availability: 50 in stock
ASUS AMD B850M PRIME B850M-A WIFI-CSM (AM5) mATX Motherboard, DDR5, Max 256GB, 1 x PCIe 5.0 x16 slot, 4 x SATA
Old price: $329.92
$326.80
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B850M-A WIFI-CSM
ASUS Prime series motherboards are expertly engineered to unleash the full potential of AMD Ryzen™ 9000 series processors. The PRIME B850M-A WIFI-CSM 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.
Products specifications
Attribute nameAttribute value
Processor manufacturerAMD
Processor socketSocket AM5
Compatible processor seriesAMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series
Supported processor socketsSocket AM5
Supported memory typesDDR5-SDRAM
Number of memory slots4
Memory slots typeDIMM
Memory channelsDual-channel
ECC сompatibilityECC & Non-ECC
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
Front panel connectorYes
ATX Power connector (24-pin)Yes
CPU fan connectorYes
Number of chassis fan connectors3
Chassis intrusion connectorYes
EPS power connector (8-pin)Yes
Number of COM connectors1
TPM connectorYes
12V power connectorYes
RGB LED pin headerYes
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
WiFi-AP antenna jack1
Ethernet LANYes
Ethernet interface type2.5 Gigabit Ethernet
Wi-FiYes
Top Wi-Fi standardWi-Fi 6E (802.11ax)
Wi-Fi standardsWi-Fi 6E (802.11ax)
BluetoothYes
Bluetooth version5.3
Motherboard chipsetAMD B850
Audio output channels7.1 channels
Product colourBlack, White
Component forPC
Motherboard form factormicro ATX
Motherboard chipset familyAMD
Windows operating systems supportedWindows 10 x64, Windows 11
PCI Express x16 (Gen 4.x) slots1
PCI Express x16 (Gen 5.x) slots1
Number of M.2 (M) slots3
1st M.2 largest key size2280
1st M.2 highest PCI Express generation5.0
2nd M.2 largest key size2280
2nd M.2 highest PCI Express generation4.0
3rd M.2 largest key size2280
3rd M.2 highest PCI Express generation4.0
BIOS typeUEFI AMI
BIOS memory size256 Mbit
Width244 mm
Depth244 mm
Cables includedSATA
Antenna includedYes
Screws includedYes
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