Connectivity & I/O

I/O backplate visual — refer to official ASUS product page for high-resolution rear panel imagery

Motherboard Anatomy

ASUS Motherboard board layout
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Full Product Details

Processor & Chipset

CPU SocketAMD AM5 (LGA 1718)
ChipsetAMD B850
Supported CPUsAMD Ryzen 9000 Series / Ryzen 8000 Series / Ryzen 7000 Series Desktop Processors
VRM Power Phases8+2+1 (discrete MOSFETs)

Memory

Memory TypeDDR5
DIMM Slots4 x DDR5 DIMM (Dual Channel)
Max Capacity256 GB
Max Speed (OC)8000+ MT/s
Native Speed4800 MT/s
ECC SupportNon-ECC, un-buffered
XMP / EXPOAMD EXPO & Intel XMP supported

Storage

M.2_1 (from CPU)PCIe 5.0 x4 — Type 2280 (Ryzen 9000 & 7000)
M.2_2 (from chipset)PCIe 4.0 x4 — Type 2242 / 2260 / 2280
M.2_3 (from chipset)PCIe 4.0 x2 — Type 2242 / 2260 / 2280
SATA Ports4 x SATA 6 Gb/s
RAID SupportRAID 0, 1, 10 (SATA); RAID 0, 1 (NVMe via chipset)

Expansion Slots

PCIe x16 (GPU)1 x PCIe 5.0 x16 (Ryzen 9000 / 7000) — PCIe 4.0 x8/x4 (Ryzen 8000)
PCIe x1 Slots3 x PCIe 4.0 x16 slots (running at x1 mode)

USB & Rear I/O Panel

USB 10 Gbps (Rear)1 x Type-A + 1 x USB Type-C
USB 5 Gbps (Rear)2 x Type-A
USB 2.0 (Rear)5 x Type-A
USB (Front Headers)1 x USB 5Gbps Type-C header; 2 x USB 5Gbps headers (up to 4 ports); 2 x USB 2.0 headers (up to 4 ports)
Display Outputs1 x HDMI 2.1 + 1 x DisplayPort 1.4
BIOS FlashBack ButtonYes (rear I/O)
PS/2 Combo Port1 x PS/2 keyboard / mouse

Networking & Connectivity

EthernetRealtek 1 Gb Ethernet
Wi-FiWi-Fi 6 (802.11ax) — 2x2 MIMO
BluetoothBluetooth 5.4

Audio

Audio CodecRealtek 7.1 Surround Sound HD Audio CODEC
Max Playback24-Bit / 192 kHz
FeaturesAudio shielding, premium capacitors, dedicated audio PCB layers, jack-detection, multi-streaming

Physical & Form Factor

Form FactorMicro-ATX
Dimensions (L x W)244 x 244 mm (9.6" x 9.6")
Supported OSWindows 11 64-bit, Windows 10 64-bit

Special Features

BIOS FlashBackUSB BIOS FlashBack — update BIOS without CPU or memory installed
RGB LightingASUS Aura Sync — addressable Gen 2 RGB header + AURA RGB header
Fan Headers1 x CPU Fan, 1 x CPU OPT Fan, 2 x Chassis Fan, 1 x AIO Pump
Power Connectors1 x 24-pin EATX power + 1 x 8-pin ATX 12V

Support & Downloads

BIOS Update (Latest) Version 2024 · UEFI Firmware · Check ASUS support for latest version
ASUS Support →
BIOS Recovery Tool ASUS CrashFree BIOS 3 · USB-based recovery utility
ASUS Support →
Chipset Driver Package AMD/Intel chipset drivers · Windows 10/11
ASUS Support →
LAN / Wi-Fi / Bluetooth Drivers Latest network drivers for this motherboard
ASUS Support →
Audio Drivers Realtek / SupremeFX audio codec driver
ASUS Support →
ASUS Motherboard User Manual PDF · Complete installation and configuration guide
ASUS Support →
Quick Start Guide PDF · Hardware installation quick reference
ASUS Support →
← Back to ASUS Motherboard Catalog

Frequently Asked

What CPUs are compatible with the ASUS B850M MAX GAMING WIFI?

The ASUS B850M MAX GAMING WIFI supports AMD Ryzen 9000, 8000, and 7000 series desktop processors via the AM5 (LGA 1718) socket. This includes the Ryzen 9 9950X, Ryzen 7 9700X, Ryzen 5 9600X, and all previous-gen AM5 processors.

Does the ASUS B850M MAX GAMING WIFI support PCIe 5.0?

Yes. It features 1x PCIe 5.0 x16 slot for graphics cards and 1x PCIe 5.0 x4 M.2 slot for next-generation NVMe storage, both available with Ryzen 9000 and 7000 series processors. With Ryzen 8000 series, the GPU slot operates at PCIe 4.0.

What is the maximum DDR5 memory speed supported?

The board supports DDR5 memory with speeds up to 8000+ MT/s (OC) via AMD EXPO and Intel XMP profiles across 4 DIMM slots, with a maximum capacity of 256 GB.

SEO Schema Output

This is what Google, ChatGPT, Gemini, and Perplexity see when they crawl this page. In production, every field is auto-populated from the Icecat JSON API.

JSON-LD Product Schema

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    { "name": "WiFi", "value": "Wi-Fi 6 (802.11ax)" },
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Compatible Processors

The ASUS B850M MAX GAMING WIFI uses the AMD AM5 (LGA 1718) socket. These processors are compatible:

AMD Ryzen 9500F Tray 6C/12T 5.0GHz 32MB L3 65W AM5
AM5
AMD Ryzen 9600 Boxed 6C/12T 5.2GHz 32MB L3 65W AM5
AM5
AMD Ryzen 9600X Boxed 6C/12T 5.4GHz 32MB L3 65W AM5
AM5
AMD Ryzen 9700X Boxed 8C/16T 5.5GHz 32MB L3 65W AM5
AM5
AMD Ryzen 9800X3D Boxed 8C/16T 5.2GHz 96MB L3 120W AM5
AM5
AMD Ryzen 9850X3D Boxed 8C/16T 5.6GHz 96MB L3 120W AM5
AM5
AMD Ryzen 9900X Boxed 12C/24T 5.6GHz 64MB L3 120W AM5
AM5
AMD Ryzen 9900X3D Boxed 12C/24T 5.5GHz 128MB L3 120W AM5
AM5
AMD Ryzen 9950X Boxed 16C/32T 5.7GHz 64MB L3 170W AM5
AM5
AMD Ryzen 9950X3D Boxed 16C/32T 5.7GHz 128MB L3 170W AM5
AM5

Compatible Memory

The ASUS B850M MAX GAMING WIFI supports DDR5 memory. These modules are compatible:

Corsair Dominator Platinum RGB DDR5 32GB (2x16GB) 5200MT/s DIMM AMD EXPO — CMT32GX5M2B5200Z40
DDR5 · 32GB (2x16GB)
Crucial DDR5 128GB (2x64GB) 5600MT/s DIMM CL46 — CT2K64G56C46U5
DDR5 · 128GB (2x64GB)
G.Skill Aegis 5 DDR5 16GB 5200MT/s DIMM AMD EXPO — F5-5200J4040A16GX1-IS
DDR5 · 16GB
Kingston FURY Beast DDR5 128GB (2x64GB) 5600MT/s DIMM AMD EXPO — KF556C36BBEK2-128
DDR5 · 128GB (2x64GB)
Samsung DDR5-4800 16GB DIMM — M323R2GA3BB0-CQK
DDR5 · 16GB
Team Group Elite DDR5 16GB 4800MT/s DIMM CL40 — TED516G4800C4001
DDR5 · 16GB
Corsair Dominator Platinum RGB DDR5 32GB (2x16GB) 5200MT/s DIMM Intel XMP — CMT32GX5M2B5200C40
DDR5 · 32GB (2x16GB)
Crucial DDR5 128GB (2x64GB) 5600MT/s SODIMM CL46 — CT2K64G56C46S5
DDR5 · 128GB (2x64GB)
G.Skill Aegis 5 DDR5 16GB 5600MT/s DIMM AMD EXPO — F5-5600J3636C16GX1-IS
DDR5 · 16GB
Kingston FURY Beast DDR5 128GB (2x64GB) 5600MT/s DIMM Intel XMP — KF556C40BBK2-128
DDR5 · 128GB (2x64GB)