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Pro WS B850M-ACE SE
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ASUS Pro WS B850M-ACE SE AMD Micro-ATX motherboard, with server-grade IPMI management, PCIe 5.0 x 16, PCIe 5.0 M.2, PCIe 5.0 MCIO, U.2 connector, 10Gb and 2.5Gb Ethernet, ready for USB4®

  • Ready for Advanced AI PCs: Built to power next-gen AI workloads with robust performance, ultrafast connectivity, and future-proof architecture.
  • AMD AM5 Socket Support: Compatible with AMD Ryzen™ 9000/8000/7000 Series and AMD EPYC™ 4005 Series processors.
  • Ultrafast Connectivity: Two PCIe® 5.0/4.0 x16 slot (one at x4), 10 Gb & 2.5 Gb LAN ports, two PCIe® 5.0 x4 M.2 slots, front USB 20Gbps Type-C® and MCIO NVMe support.
  • Server-grade IPMI Remote Management: Supports onboard BMC AST2600, along with ASUS Control Center Express IT management software for real-time monitoring and management.
  • Proven Reliability & Stability: Extensively validated with broad compatibility, a comprehensive QVL, and tested for 24/7 operation.
Pro WS B850M-ACE SE
A high-angle shot of Pro WS B850M-ACE SE motherboard; 25 degrees tilted towards right.

Pro WS B850M-ACE SE

The Pro WS B850M-ACE SE empowers workstation users of all levels by maximizing the performance of the latest AMD Ryzen™ processors via 8+2+1 team power stages, DDR5 slots, PCIe® 5.0 and lightning-fast connectivity including a front USB 20Gbps Type-C® connector, plus 10Gb and 2.5Gb Ethernet.
This workstation motherboard is an ideal choice for content creation, AI and deep learning, and IT management.
Advanced AI PC ready icon
AMD RYZEN icon
AMD B850 chipset icon
A high-angle shot of Pro WS B850M-ACE SE motherboard; 25 degrees tilted towards right.
USB 20Gbps Type-C® icon

Front USB 20Gbps Type-C® Connector

for ultrafast data transmission
10Gb and 2.5Gb dual Ethernet icon

Dual Ethernet

10Gb and 2.5Gb LAN
Icon depicting power stages: 8+2+1

8+2+1 Power Stages

rated for up to 80A each
Icon depicting ACCE’s remote control capability for multiple devices

Remote Control Solution

onboard BMC
ASUS Control Center Express
PCIe 5.0 icon

PCIe® 5.0

full support for next-gen graphics cards
Easy PC DIY icon

Easy PC DIY

M.2 Q-Latch and ASUS DriverHub
DDR5 logo

DDR5 Support

effortlessly apply to unleash performance
24/7 reliability icon

24/7 Reliability

168 hours, 45°C and 80% humidity
AI technology icon

Exclusive AI Technology

AI Cache Boost for faster local LLM performance

Ports & Slots

Ultrafast Networking

Featuring onboard dual Ethernet ports—one Realtek 10Gb LAN and one Intel® 2.5Gb LAN—the Pro WS B850M-ACE SE delivers high-speed network connectivity for demanding workflows. Additionally, it includes a dedicated Realtek 1Gb Ethernet port exclusively for BMC and IPMI management
Highlight onboard dual Ethernet ports, one 10Gb LAN and one 2.5Gb LAN. Also, one 1Gb Ethernet port dedicated to BMC and IPMI management

PCIe 5.0 Support

The Pro WS B850M-ACE SE offers PCIe 5.0 support to give unfettered bandwidth to the fastest SSDs and graphics cards available.

PCIe 5.0 Expansion Slot

The Pro WS B850M-ACE SE is equipped with one PCIe 5.0 expansion slot, offering incredible speeds of up to 64GB/s for compatible devices. It is also protected with SafeSlot retention brackets to bear the brunt of massive graphics cards, if need be.

Remote Control Solution

Onboard BMC

The Pro WS B850M-ACE SE workstation motherboard features compatibility with BMC connections, and it is bundled with ASUS Control Center Express software to provide comprehensive in-band and out-of-band management features for businesses and industries.
A monitor, a laptop, and a smartphones, all displaying the ACCE user interface.
Remote Console (ACCE Service)
Client with BMC (Onboard)
In-band and out-of-band
Client without BMC
In-band only

ASUS Control Center Express

ASUS Control Center Express is remote IT management software designed for monitoring your hardware and software IT assets and inventory status, with enhanced security and remote control features that prevent data leaks and improve IT operational efficiency.
Learn more about ASUS Control Center Express
An icon featuring a USB disk
USB Port Management
Enable or disable the USB port, or set it to Read Only to prevent data leaks.
An icon showing a man with a block symbol.
Software Blacklist
For added security, a software blacklist is available to help prevent the use of high-risk applications.
An icon featuring a pen and a document.
Registry Editor On/Off
Remotely disable the Registry Editor on client devices to prevent unauthorized changes to system configurations.

The Core of Your Powerful Workstation

Designed to meet the needs of high-core-count CPUs, the Pro WS B850M-ACE SE features 8(80A)+2(80A)+1(80A) power stages that integrate high-side and low-side MOSFETs and drivers into packages rated for up to 80 amps each. This configuration ensures optimal power delivery, efficiency, stability and performance for AMD processors.
Icon showing a stack of eight layers, representing an eight-layered PCB design for enhanced stability and overclocking.

Eight-Layer PCB Design

This enhances quick heat dissipation around the voltage regulators for enhanced stability and overclocking.
Icon of a connector labeled ‘Solid Pin,’ indicating ProCool II power connectors for improved connection.

ProCool II Connectors

These are built to tight specifications to ensure flush contact with PSU power lines. The resulting lower impedance helps to prevent hotspots and connector failure.
Icon of cylindrical components with a checkmark, symbolizing chokes and capacitors for durability and stability.

Superior Chokes & Capacitors

These are engineered to resist extreme temperatures, providing a higher level of performance than the industry standard.
Icon of an integrated circuit chip labeled ‘Digi+ VRM,’ representing Digi+ VRM control for real-time voltage management.

Digi+ VRM Control

The ASUS Digi+ voltage-regulator module (VRM) is one of the finest in the industry and ensures ultra-smooth power delivery to the CPU.

Memory

The Pro WS B850M-ACE SE motherboard is primed and ready for enthusiast-grade kits, courtesy of vast AMD Extended Profiles for Overclocking (EXPO™) support. You can extract all the potential out of your DDR5 modules1, whether they’re from an extreme-speed kit or an entry-level set that would otherwise be locked.
Up to DDR5
8000+
MHz
A close-up photo of a motherboard with

Intelligent AI Solutions

AI Cache Boost

Supercharge your large language model (LLM) workflows with AI Cache Boost. Exclusive to ASUS AMD 800 and 600 series motherboards that use Ryzen™ 9000 Series CPUs, this Bioses setting optimizes CPU cache and memory pathways to deliver up to 29% faster local LLM performance with high-speed memory tuning.
User interface of AI Cache Boost, showcasing it can deliver up to 29% faster local LLM performance.

Easy PC DIY

M.2 Q-Latch

The innovative ASUS Q-Latch makes it easy to install or remove an M.2 SSD without the need for specific tools or screws. This design employs a simple locking mechanism to secure the drive and neatly detach it with one tap.
Showcasing the design of the M.2 Q-Latch.

ASUS DriverHub

ASUS DriverHub streamlines the installation and management of ASUS drivers and utilities to keep your hardware up-to-date and perform optimally. This standalone application automatically detects current driver versions and presents available updates in a list view. Users are invited to install ASUS DriverHub after OS installation.
Learn more about ASUS DriverHub
AI DriverHub user interface

Comprehensive Storage Support

The Pro WS B850M-ACE SE features two PCIe 5.0 x4 M.2 slots, plus one MCIO connector (PCIe 5.0 x4), and one U.2 connector (PCIe 3.0 x4) for industrial-grade U.2 SSD support, delivering exceptional flexibility and high-speed storage options. All M.2 slots support NVMe® RAID configurations to take advantage of the latest available speeds.

Bandwidth (Gbps)

24/7 Reliability

Optimized for 24/7 operation, the Pro WS B850M-ACE SE motherboard is tested to work at up to 45°C and 80% humidity, ensuring it can handle diverse operating environments.
  1. Memory overclocking may vary between CPU series. Please refer to the spec table for detailed information.↑
  2. Actual transmission speed will be lower than theoretical maximum speed.↑
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Product has High-Definition Multimedia Interface.
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**Product specifications and battery design may vary depending on the model. For any questions, please contact ASUS official customer service.