ASUS Prime B850 Plus WIFI CSM Intel Chipset

ASUS Prime series motherboards are expertly engineered to unleash the full potential of AMD Ryzen™ 9000 series processors. The PRIME B850-PLUS 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.

Tech Specs

Model

• PRIME B850-PLUS WIFI-CSM

News & Updates

• Socket AM5,

CPU

• AMD Socket AM5 for AMD Ryzen™ 9000 & 8000 & 7000 Series Desktop Processors*
• Supports up to AMD 170W CPU

Chipset

• AMD B850 Chipset

Memory

• 4 x DIMM slots, max. 256GB, DDR5 Supports up to 8000+MT/s (OC) with Ryzen™ 9000 & 8000 & 7000 Series Processors, ECC and Non-ECC Un-buffered DIMM*
• 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.

Graphics

• 1 x DisplayPort**
• 1 x HDMI™ port***
  * 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.

Expansion Slots

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 (support x4 mode)
• 2 x PCIe 3.0 x16 slots (support x1 mode)***
  ** Specifications vary by CPU types.
  *** The PCIEX16(G3)_1/2 share bandwidth with SATA6G_1/2. The SATA6G_1/2 will be disabled when The PCIEX16(G3)_1 or PCIEX16(G3)_2 runs.

Storage

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.

AMD RAIDXpert2 Technology

• Ryzen™ 9000 Series Processors: RAID 0/1/5/10
• Ryzen™ 8000 Series Processors: RAID 0/1
• Ryzen™ 7000 Series Processors: RAID 0/1/10

Ethernet

• 1 x Realtek 2.5Gb Ethernet
• ASUS LANGuard

Wireless & Bluetooth

• Wi-Fi 6E
• 2×2 Wi-Fi 6E (802.11ax)
• Supports 2.4/5/6GHz frequency band*
• Bluetooth® v5.3**
  * 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.

USB

Rear USB (Total 8 ports)

• 4 x USB 10Gbps port(s) (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® power delivery output: max. 5V/3A

Audio

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.

Back Panel I/O Ports

• 1 x USB 10Gbps port (1 x USB Type-C®)
• 3 x USB 10Gbps ports (3 x Type-A)
• 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

Internal I/O Connectors

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 connectors
• 1 x 4-pin +12V CPU Power connectors

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 System Panel header
• 1 x Thunderbolt™ (USB4®) header

Special Features

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

Software Features

• ASUS Exclusive Software
• Armoury Crate
  Aura Creator
  Aura Sync
  Fan Xpert 2+
  Power Saving
• ASUS AI Advisor
• ASUS Driver Hub
• ASUS GlideX
• TurboV Core
• ASUS CPU-Z
• 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

Remote Management Features

IT Management software supported

•  ASUS Control Center Express(ACCE)

BIOS

• 256 Mb Flash ROM, UEFI AMI BIOS

Manageability

• WOL by PME, PXE

Accessories

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

Operating System

• Windows® 11, Windows® 10 64-bit

Form Factor

ATX Form Factor

• 12 inch x 9.6 inch ( 30.5 cm x 24.4 cm )