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EPYC, Ryzen 5, Ryzen 7, Ryzen 9 Processor Supported - 256 GB DDR5 SDRAM Maximum RAM - DIMM, UDIMM - 4 x Memory Slots - Gigabit Ethernet - 2.5Gigabit Ethernet - HDMI - DisplayPort - 4 x SATA Interfaces
$388.03
Special order — estimated available by September 10, 2026.
Genuine ASUS Computer International through authorized distribution — TAA country-of-origin verified and NDAA §889 screened before checkout.
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
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.
Front USB 20Gbps Type-C® Connector
for ultrafast data transmission
Dual Ethernet
10Gb and 2.5Gb LAN
8+2+1 Power Stages
rated for up to 80A each
Remote Control Solution
onboard BMC
ASUS Control Center Express
PCIe® 5.0
full support for next-gen graphics cards
Easy PC DIY
M.2 Q-Latch and ASUS DriverHub
DDR5 Support
effortlessly apply to unleash performance
24/7 Reliability
168 hours, 45°C and 80% humidity
Exclusive AI Technology
AI Cache Boost for faster local LLM performance
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
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.
Limited Warranty: 3 Year
About ASUS ASUS is a multinational company best known for their motherboards, PCs, monitors, graphics cards and routers. Along with an expanding range of superior gaming, content-creation and AIoT solutions, ASUS leads the industry through cutting-edge design and innovations made to create the most ubiquitous, intelligent, heartfelt and joyful smart life for everyone. With a global workforce that includes more than 5,000 R&D professionals, ASUS is driven to become the world’s most admired innovative leading technology enterprise. About ROG Republic of Gamers (ROG) is an ASUS sub-brand dedicated to creating the world’s best gaming hardware and software. Formed in 2006, ROG offers a complete line of innovative products known for performance and quality, including motherboards, graphics cards, laptops, desktops, monitors, audio equipment, routers and peripherals. ROG participates in and sponsors major international gaming events. ROG gear has been used to set hundreds of overclocking records and it continues to be the preferred choice of gamers and enthusiasts around the world. © 2024 ASUS Computer International. All Rights Reserved. ASUS is a registered trademark of ASUSTeK Computer. All specifications and terms are subject to change without notice. Please check with your supplier for exact offers on selected models. Products may not be available in all markets. Product may not be exactly as shown in photos. Actual colors may differ from their appearance due to variation of monitor restrictions and color processing. All trademarks are registered to their respective companies. ASUS shall not be liable for technical or editorial errors or omissions contained herein.
| Audio | |
|---|---|
| Audio Channels | 7.1 |
| General Information | |
| Manufacturer | ASUS Computer International |
| Manufacturer Part Number | PRO WS B850M-ACE SE |
| Brand Name | Asus |
| Product Series | PRO |
| Product Model | WS B850M-ACE SE |
| Product Name | PRO WS B850M-ACE SE Workstation Motherboard |
| Product Type | Workstation Motherboard |
| I/O Controller | |
| Controller Type | Serial ATA/600 |
| RAID Supported | Yes |
| RAID Levels | 0, 1, 5, 10 |
| I/O Expansions | |
| Total Number of Expansion Slots | 3 |
| Total Number of PCI Express Slots | 3 |
| PCI Express Standard | PCI Express 4.0, PCI Express 5.0 |
| Number of PCI Express x16 Slots | 3 |
| Interfaces/Ports | |
| Total Number of USB Ports | 7 |
| VGA | Yes |
| HDMI | Yes |
| DisplayPort | Yes |
| Number of Network (RJ-45) Ports | 3 |
| Thunderbolt | Yes |
| Number of Thunderbolt 4 Ports | 2 |
| Memory | |
| Number of Memory Slots | 4 |
| Memory Form Factor | DIMM, UDIMM |
| Maximum Memory Supported | 256 GB |
| Memory Speed Supported | 8000 MHz, 5600 MHz |
| Memory Technology | DDR5 SDRAM |
| Error Checking | ECC |
| Network & Communication | |
| Gigabit Ethernet | Yes |
| 2.5Gigabit Ethernet | Yes |
| 10Gigabit Ethernet | Yes |
| Onboard Interfaces | |
| Number of SATA Interfaces | 4 |
| Number of M.2 Interfaces | 2 |
| Total Number of Onboard USB Ports | 7 |
| Number of Onboard USB 2.0 Ports | 4 |
| Physical Characteristics | |
| Form Factor | Micro ATX |
| Height | 0.2" |
| Width | 9.6" |
| Depth | 9.6" |
| Weight (Approximate) | 3.04 lb |
| Processor & Chipset | |
| Chipset Manufacturer | AMD |
| Chipset Model | B850 |
| Total Processor Supported | 1 |
| Processor Socket | Socket AM5 |
| Processor Supported | EPYC, Ryzen 5, Ryzen 7, Ryzen 9 |
| Technical Information | |
| AI-powered | Yes |
| Video | |
| Onboard Video | CPU Dependent Video |
| Warranty | |
| Limited Warranty | 3 Year |
| Miscellaneous | |
| Environmental Compliance | Restriction of Hazardous Substances (RoHS) |
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