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ATX motherboard with LGA socket, PCIe slots, and large heatsinks, featuring ASUS branding and a white-silver color scheme.

ASUS PRIME B550-PLUS WIFI motherboard with AM4 socket, RAM slots, PCIe slots, and M.2 shield.

Rear I/O panel with HDMI and DisplayPort outputs, multiple USB ports (including USB 3.0 blue and USB-C), Ethernet jack, and color-coded audio jacks

Desktop motherboard with I/O shield showing USB ports, Ethernet, and audio jacks; wireless antenna and stand-alone module beside it for reference

ASUS Prime B850 Plus Wifi CSM AMD Motherboard (PRIME B850-PLUS WIFI-CSM)

Original price was: ₹82,453.Current price is: ₹21,850.

(Inc. of all taxes)

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SKU / Model No:

PRIME B850-PLUS WIFI-CSM

Category:

Asus, Motherboard

Estimated Delivery: Mon, 06 Jul - Wed, 08 Jul 2026

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ASUS Prime B850 Plus Wifi CSM AMD Motherboard (PRIME B850-PLUS WIFI-CSM)

B850-PLUS WIFI-CSM

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.

Performance

Digital Power Design

PRIME B850-PLUS WIFI-CSM features an 8+2+1 phase power design with discrete MOSFETs, ensuring efficient and stable power delivery for AMD processors plus steady performance for day-to-day use.

Six-layer PCB design

Enhanced stability and overclocking. The multi-layered printed circuit board design quickly dissipates heat around the voltage regulators to improve overall system stability and provide the CPU with more overclocking headroom.

Power Saving

Optimize power with CPU, lighting, and fan settings. The Power Saving function contains several settings to easily optimize power consumption and maximize energy savings. You can enable a CPU power limit, darken Aura lighting and set the fan profile to a Power Saving mode. You can also toggle the Power Saver plan that is built into Microsoft Windows.

Digi+ VRM control

Real-time voltage control. The Digi+ voltage-regulator module (VRM) delivers real-time control over voltage droop, automatically switching frequency and power-efficiency settings.

Enhanced DDR5 performance

Comprehensive memory tuning options are the cornerstone of PRIME motherboards. The PRIME B850-PLUS WIFI-CSM maximizes the potential of your DDR5 modules, from entry-level to extreme-speed kits.²

For entry-level modules without EXPO^™ support, ASUS Enhanced Memory Profile (AEMP) automatically detects memory chips and provides optimized profiles for enhanced performance.

For those looking to surpass stock DDR5 speeds, the PRIME B850-PLUS WIFI-CSM offers extensive AMD Extended Profiles for Overclocking (EXPO^™) support and a wide array of UEFI settings for further performance tweaks.

Three M.2 slots (up to 128 Gbps)

PRIME B850-PLUS WIFI-CSM offers a total of three M.2 slots, including one that supports data-transfer speeds of up to 128 Gbps via PCIe 5.0, and two that support PCIe 4.0. This enables quicker boot-up and app load times with OS or application drives.

Cooler by design

The PRIME B850-PLUS WIFI-CSM motherboard is engineered with multiple onboard heatsinks and an array of hybrid fan headers to help ensure your rig stays cool and stable under intense workloads

ASUS Fan Xpert 2+

ASUS Fan Xpert 2+ software provides comprehensive control over fans. An Auto-Tuning mode intelligently configures all parameters with a single click. There’s also an Extreme Quiet mode that reduces chassis fan speeds to below the default minimum to keep your system whisper-quiet when performing light tasks. Fans can also be controlled via the UEFI BIOS.

Cooler compatibility

ASUS AIO coolers offer robust performance, high overclocking potential, bold aesthetics and customizable functionality for new motherboards, empowering you to build your dream gaming rig.

Empowering connections

This motherboard offers a versatile range of connectivity, including support for WiFi 6E, PCIe 5.0 slot and an arsenal of USB ports which includes Type-C^® connections.

WiFi 6E

Built-in WiFi 6E⁵ technology takes advantage of the newly available radio spectrum in the 6 GHz band. With triple the bandwidth of the 2.4/5/6 GHz band, WiFi 6E delivers ultrafast wireless networking speeds with improved capacity and better performance in dense wireless environments.

Realtek 2.5 Gb Ethernet

Realtek 2.5 Gb Ethernet reduces CPU overhead and offers exceptionally high TCP and UDP throughput for faster, smoother data transfers.

USB 10Gbps Type-C^®

A batch of USB ports support high-end rigs loaded with peripherals, including a rear USB Type-C^® connector with ultrafast USB 10Gbps for transmission speeds of up to 10Gbps.

Personalization

The PRIME B850-PLUS WIFI-CSM enhances the user experience across the board, from simplifying BIOS setting adjustments to offering customizable RGB lighting controls for a uniquely personal system aesthetic.

DIY friendly

The PRIME B850-PLUS WIFI-CSM motherboard features EZ PC DIY innovations that simplify and speed up the PC building process, making DIY easy and convenient.

Q-Antenna

With Q-Antenna, attaching a WiFi antenna to your PC is now easy and fast. Instead of slowly rotating two fasteners until they finally lock in, they just snap into place. Less hassle, and more consistent performance.⁷

Q-LED Core

The Q-LED Core display produces color-coded lights during the Power-On Self-Test (POST) that can help you troubleshoot potential issues.

Build for the most advanced pc for gaming and creating

When only the fastest will do, ASUS motherboards deliver. With faster dual-channel DDR5 memory support, AMD EXPO^™ technology and PCIe^® 5.0 support for both graphics and NVMe, you can play the most demanding games and deliver your biggest projects with the revolutionary performance of an ASUS motherboard and AMD Ryzen^™ 9000, 8000, and 7000 Series processors.

Specifications

Model	PRIME B850-PLUS WIFI-CSM
CPU	AMD Socket AM5 for AMD Ryzen™ 9000 & 8000 & 7000 Series Desktop Processors*
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)
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)* * Please check the PCIe bifurcation table on the support site (https://www.asus.com/support/FAQ/1037507/). 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
Form Factor	ATX Form Factor 12 inch x 9.6 inch ( 30.5 cm x 24.4 cm )