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General Information |
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Summary |
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. |
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Processor |
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Processor manufacturer |
AMD |
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Processor socket |
Socket AM5 |
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Compatible processor series |
AMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series |
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Supported processor sockets |
Socket AM5 |
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Memory |
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Supported memory types |
DDR5-SDRAM |
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Number of memory slots |
4 |
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Maximum internal memory |
256 GB |
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Memory slots type |
DIMM |
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Memory channels |
Dual-channel |
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ECC сompatibility |
ECC & Non-ECC |
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Unbuffered memory |
Yes |
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Storage controllers |
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Supported storage drive interfaces |
M.2, SATA III |
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Supported storage drive types |
HDD & SSD |
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Number of HDDs supported |
4 |
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Number of storage drives supported |
7 |
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RAID support |
Yes |
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RAID levels |
0, 1, 5, 10 |
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Graphics |
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Parallel processing technology support |
Not supported |
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Internal I/O |
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USB 2.0 connectors |
2 |
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USB 3.2 Gen 1 (3.1 Gen 1) connectors |
2 |
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USB 3.2 Gen 2 (3.1 Gen 2) connectors |
0 |
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Number of SATA III connectors |
4 |
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S/PDIF out connector |
Yes |
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Front panel audio connector |
Yes |
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Front panel connector |
Yes |
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ATX Power connector (24-pin) |
Yes |
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CPU fan connector |
Yes |
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Number of chassis fan connectors |
3 |
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Chassis intrusion connector |
Yes |
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EPS power connector (8-pin) |
Yes |
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Number of COM connectors |
1 |
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TPM connector |
Yes |
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12V power connector |
Yes |
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RGB LED pin header |
Yes |
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Rear panel I/O ports |
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USB 2.0 ports quantity |
4 |
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USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity |
2 |
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USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity |
0 |
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USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity |
2 |
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USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity |
0 |
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Ethernet LAN (RJ-45) ports |
1 |
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VGA (D-Sub) ports quantity |
0 |
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HDMI ports quantity |
1 |
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DVI-D ports quantity |
0 |
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DisplayPorts quantity |
2 |
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WiFi-AP antenna jack |
1 |
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Network |
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Wi-Fi |
Yes |
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Ethernet LAN |
Yes |
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Ethernet interface type |
2.5 Gigabit Ethernet |
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Top Wi-Fi standard |
Wi-Fi 6E (802.11ax) |
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Wi-Fi standards |
Wi-Fi 6E (802.11ax) |
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Bluetooth |
Yes |
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Bluetooth version |
5.3 |
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Features |
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Component for |
PC |
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Motherboard form factor |
micro ATX |
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Motherboard chipset family |
AMD |
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Motherboard chipset |
AMD B850 |
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Audio output channels |
7.1 channels |
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Product colour |
Black, White |
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Windows operating systems supported |
Windows 10 x64, Windows 11 |
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Expansion slots |
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PCI Express x16 (Gen 4.x) slots |
1 |
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PCI Express x16 (Gen 5.x) slots |
1 |
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Number of M.2 (M) slots |
3 |
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1st M.2 largest key size |
2280 |
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1st M.2 highest PCI Express generation |
5.0 |
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2nd M.2 largest key size |
2280 |
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2nd M.2 highest PCI Express generation |
4.0 |
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3rd M.2 largest key size |
2280 |
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3rd M.2 highest PCI Express generation |
4.0 |
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BIOS |
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BIOS type |
UEFI AMI |
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BIOS memory size |
256 Mbit |
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Weight & dimensions |
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Width |
244 mm |
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Depth |
244 mm |
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Packaging content |
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Cables included |
SATA |
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Antenna included |
Yes |
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Screws included |
Yes |
