ASUS PRIME B860M-A-CSM – Advanced AI PC Ready Intel LGA1851 Micro-ATX Motherboard
The ASUS PRIME B860M-A-CSM is engineered to unleash the full computing power of the next-generation Intel® Core™ Ultra Processors (Series 2) on the LGA1851 socket. Perfect for deployment in enterprise workstations or custom commercial builds, this micro-ATX motherboard blends robust electrical engineering with extensive thermal defense. As part of the ASUS Corporate Stable Model (CSM) program, it provides organizations with up to 36-month supply longevity and the ASUS Control Center Express IT software suite for effortless network management.
Packed with cutting-edge architectures, the PRIME B860M-A-CSM includes blistering PCIe 5.0 x16 lanes for professional GPUs, multi-gigabit 2.5Gb Ethernet, high-bandwidth DDR5 layout architecture, and ultra-fast 20Gbps USB Type-C connectivity to maximize your workflow throughput.
Key Features & Strategic Highlights
- Intel® LGA1851 Socket Ready: Optimized for elite-tier performance workloads powered by the groundbreaking Intel® Core™ Ultra Processors (Series 2).
- Enhanced Power Delivery: Combines an efficient 7+1+1+1 digital VRM power stage array (rated at 80A each) to deliver absolutely clean, reliable voltage management directly to the CPU.
- Next-Gen Data Horizons: Built with one premium PCIe 5.0 x16 slot along with an onboard PCIe 5.0 M.2 layout to deliver up to 128Gbps storage bandwidth while avoiding thermal throttling via a integrated aluminum heatsink.
- DDR5 Performance Engine: Supports dual-channel DDR5 system modules up to 256GB with ASUS Enhanced Memory Profile III (AEMP III) to achieve fast operational memory stability.
- ASUS Corporate Stable Model (CSM): Includes a complimentary license for ASUS Control Center Express—a server-grade, centralized IT monitoring program—alongside stable product roadmaps to lower overall ownership costs.
- Ultrafast SuperSpeed Networking: Equipped with a physical Realtek 2.5Gb Ethernet connection and ASUS LANGuard protection for reliable internet speeds and network security.
Full Technical Specifications
| Hardware Segment | Technical Details |
|---|---|
| Processor Support | Intel® Core™ Ultra Processors (Series 2), Socket LGA1851 Architecture |
| Chipset Layout | Intel® B860 Platform Hub |
| Memory Subsystem | 4x DIMM Slots, Max 256GB Capacity, DDR5 Architecture, Non-ECC, Intel® XMP & ASUS AEMP III Support |
| Onboard Graphics | 2x DisplayPort 1.4 (Max 4K @60Hz) | 1x HDMI 2.1 (Max 4K @60Hz) |
| Expansion Slots | 1x PCIe 5.0 x16 Slot (SafeSlot Armor) 1x PCIe 4.0 x16 Slot (Supports x4 operational mode) 1x PCIe 4.0 x1 Slot |
| Storage Interfaces |
M.2_1 (CPU): 1x M.2 Slot (Key M, Type 2242/2260/2280 via PCIe 5.0 x4 mode) M.2_2 (Chipset): 1x M.2 Slot (Key M, Type 2242/2260/2280 via PCIe 4.0 x4 mode) SATA Ports: 4x SATA 6Gb/s Connectors |
| Wired Networking | 1x Realtek 2.5Gb Ethernet Port featuring ASUS LANGuard spike protection |
| Rear I/O USB Connectivity | 1x USB 20Gbps Type-C® port 1x USB 10Gbps Type-A port 2x USB 5Gbps Type-A ports 4x USB 2.0 Type-A legacy ports |
| Internal Board Headers | 1x USB 10Gbps Type-C® connector, 1x USB 3.2 Gen 1 header (supports 2 extra ports), 1x USB 2.0 header, 1x Thunderbolt™ (USB4®) header, 3x Addressable Gen 2 RGB headers, 1x Aura RGB header |
| High Definition Audio | Realtek 7.1 Surround Sound HD Audio Codec, Audio Shielding Trace, Premium Audio Capacitors |
| Commercial Features | ASUS Corporate Stable Model program, ASUS Control Center Express IT Suite, SPI TPM Header (14-1 pin) |
| Form Factor & Size | Micro-ATX Form Factor: 9.6 in x 9.6 in (24.4 cm x 24.4 cm) |