B850 MAX GAMING WIFI-CSM

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AMD Socket AM5 for AMD Ryzen^™ 9000 & 8000 & 7000 Series Desktop Processors*
Supports up to AMD 170W CPU
* Refer to https://www.asus.com/support/download-center/ for CPU support list.

AMD B850 Chipset

4 x DIMM slots, max. 256GB, DDR5 ECC and Non-ECC Un-buffered DIMM*
Supports up to
8400+MT/s(OC)**/8200+MT/s(OC)*** with Ryzen™ 9000 Series Processors,
9000+MT/s(OC)**/8600+MT/s(OC)*** with Ryzen™ 8000 Series Processors,
8000+MT/s(OC)**/8000+MT/s(OC)*** with Ryzen™ 7000 Series Processors,
Dual channel memory architecture
Supports AMD Extended Profiles for Overclocking (EXPO^™)
ASUS Enhanced Memory Profile (AEMP)
* Non-ECC, un-buffered DDR5 memory supports On-Die ECC function.
* Supported memory types, data rate (speed), and number of DRAM modules vary depending on the CPU and memory configuration, for more information please refer to CPU/Memory Support list under the Support tab of product information site or visit https://www.asus.com/support/download-center/. Adjustments will be made based on the specifications of mass-produced memory products available on the market.
** Max Manual Overclocking: Achievable with advanced BIOS configuration and potentially specialized hardware. Passed AIDA64 memory benchmark at this frequency, verifying read/write bandwidth. Results may vary according to system components.
*** XMP/EXPO/AEMP Profiles: Rated memory module speeds require setting the BIOS performance profile. Results may vary according to system components and can be impacted when four DIMM slots are used. For XMP/EXPO/AEMP profile settings, please visit https://www.asus.com/support/faq/1042256/.

1 x DisplayPort**
1 x HDMI^™ port***  
* Available only on processors featuring integrated graphics. Graphics specifications may vary between CPU types. Please refer to AMD CPU specifications.
** Supports max. 8K@30Hz as specified in DisplayPort 1.4.
*** Supports 4K@60Hz as specified in HDMI 2.1.

AMD Ryzen^™ 9000 & 7000 Series Desktop Processors*
1 x PCIe 5.0 x16 slot (supports x16 mode)
AMD Ryzen^™ 8000 Series Desktop Processors
1 x PCIe 4.0 x16 slot (supports x8/x4 mode)**
AMD B850 Chipset
1 x PCIe 4.0 x16 slot (supports x4 mode)
2 x PCIe 3.0 x16 slots (support x1 mode)***
* Please check the PCIe bifurcation table on the support site (https://www.asus.com/support/FAQ/1037507/).
** Specifications vary by CPU types.
*** PCIEX16(G3)_1/2 share bandwidth with SATA6G_1/2. SATA6G_1/2 will be disabled when either PCIEX16(G3)_1 or PCIEX16(G3)_2 runs.
- To ensure compatibility of the device installed, please refer to https://www.asus.com/support/download-center/ for the list of supported peripherals.

Total supports 3 x M.2 slots and 4 x SATA 6Gb/s ports
AMD Ryzen^™ 9000 & 7000 Series Desktop Processors
M.2_1 slot (Key M), type 2280 (supports PCIe 5.0 x4 mode)
M.2_2 slot (Key M), type 2280 (supports PCIe 4.0 x4 mode)
AMD Ryzen^™ 8000 Series Desktop Processors
M.2_1 slot (Key M), type 2280 (supports PCIe 4.0 x4 mode)
M.2_2 slot (Key M), type 2280 (supports PCIe 4.0 x4/x2 mode)*
AMD B850 Chipset
M.2_3 slot (Key M), type 2242/2260/2280/22110 (supports PCIe 4.0 x2 mode)
4 x SATA 6Gb/s ports**
* Specifications vary by CPU types.
** PCIEX16(G3)_1/2 share bandwidth with SATA6G_1/2. SATA6G_1/2 will be disabled when either PCIEX16(G3)_1 or PCIEX16(G3)_2 runs.

AMD RAIDXpert2 Technology
Ryzen^™ 9000 & 8000 & 7000 Series Processors: RAID 0/1/5/10

1 x Realtek^® 2.5Gb Ethernet
ASUS LANGuard

Wi-Fi 6E
2x2 Wi-Fi 6E (802.11ax)
Supports 2.4/5/6GHz frequency band*
Bluetooth^® v5.4 (supports LE Audio)**
* WiFi 6E 6GHz regulatory may vary between countries, supported only in Windows 11 or later.
** The Bluetooth^® version may vary, please refer to the Wi-Fi module manufacturer's website for the latest specifications.

Rear USB (Total 8 ports)
4 x USB 10Gbps ports (3 x Type-A + 1 x USB Type-C^®)
2 x USB 5Gbps ports (2 x Type-A)
2 x USB 2.0 ports (2 x Type-A)
Front USB (Total 9 ports)
1 x USB 5Gbps connector (supports USB Type-C^®)
1 x USB 5Gbps header supports 2 additional USB 5Gbps ports
3 x USB 2.0 headers support 6 additional USB 2.0 ports
* USB Type-C^® output (USB Type-C Current): max. 5V/3A.

Realtek^® 7.1 Surround Sound High Definition Audio CODEC*
- Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking
- Supports up to 24-Bit/192 kHz playback
Audio Features
- Audio Shielding
- Premium audio capacitors
- Dedicated audio PCB layers
* A chassis with an HD audio module in the front panel is required to support 7.1 Surround Sound audio output.

4 x USB 10Gbps ports (3 x Type-A + 1 x USB Type-C^®)
2 x USB 5Gbps ports (2 x Type-A)
2 x USB 2.0 ports (2 x Type-A)
1 x DisplayPort
1 x HDMI^™ port
1 x Wi-Fi module
1 x Realtek^® 2.5Gb Ethernet port
3 x Audio jacks
1 x BIOS FlashBack^™ button

Fan and Cooling Related
1 x 4-pin CPU Fan header
1 x 4-pin CPU OPT Fan header
1 x 4-pin AIO Pump header
4 x 4-pin Chassis Fan headers
Power Related
1 x 24-pin Main Power connector
1 x 8-pin +12V CPU Power connector
1 x 4-pin +12V CPU Power connector
Storage Related
3 x M.2 slots (Key M)
4 x SATA 6Gb/s ports
USB
1 x USB 5Gbps connector (supports USB Type-C^® )
1 x USB 5Gbps header supports 2 additional USB 5Gbps ports
3 x USB 2.0 headers support 6 additional USB 2.0 ports
Miscellaneous
3 x Addressable RGB Gen 2 headers
1 x Clear CMOS header
1 x Chassis Intrusion header
1 x COM Port header
1 x Front Panel Audio header (F_AUDIO)
1 x S/PDIF Out header
1 x SPI TPM header (14-1 pin)
1 x 10-1 pin Front Panel System header
1 x Thunderbolt^™ (USB4^®) header

ASUS 5X PROTECTION III
- DIGI+ VRM
- LANGuard
- Overvoltage protection
- SafeSlot
- Stainless-steel back I/O
ASUS Q-Design
- Q-Antenna
- Q-Dashboard
- Q-DIMM
- Q-LED Core
- Q-Slot
ASUS Thermal Solution
- Flexible M.2 heatsink
- VRM heatsink design
ASUS EZ DIY
- BIOS FlashBack^™ button
- BIOS FlashBack^™ LED
- Pre-mounted I/O shield
- SafeSlot
Aura Sync
- Addressable RGB Gen 2 headers

ASUS Exclusive Software
Armoury Crate
- Aura Creator
- Aura Sync
- Fan Xpert 2+
ASUS DriverHub
- ASUS MB Manager
- ASUS AI Advisor
- ASUS CPU-Z
- ASUS GlideX
- TurboV Core
- Norton 360 Deluxe (60 Days Free Trial)
- WinRAR (40 Days Free Trial)
UEFI BIOS
ASUS EZ DIY
- ASUS CrashFree BIOS 3
- ASUS EZ Flash 3
- ASUS UEFI BIOS EZ Mode
- ASUS MyHotkey
* For more software features, please visit the asus support site or refer to www.asus.com/support for additional information.

IT Management software supported
- ASUS Control Center Express(ACCE)

32MB (256Mb) Flash ROM, UEFI AMI BIOS

WOL by PME, PXE

Cables
2 x SATA 6Gb/s cables
Miscellaneous
1 x ASUS WiFi Q-Antenna
1 x M.2 rubber packages
3 x Screw packages for M.2 SSD
Documentation
1 x ACC Express activation key card
1 x Quick start guide

Windows 11, Windows 10 64-bit

ATX Form Factor
12 inch x 9.6 inch ( 30.5 cm x 24.4 cm )