| Specification | Details |
|---|---|
| Chipset | Intel B860 |
| CPU | Supports Intel Core Ultra Processors (Series 2) Socket LGA 1851 |
| Memory | |
| Configuration | 2x DDR5 UDIMM, Maximum Memory Capacity 128GB |
| Memory Support | DDR5 9066 – 6400 (OC) MT/s / 6400 – 4800 (JEDEC) MT/s |
| Max Overclocking Frequency | 1DPC 1R: Up to 9066+ MT/s 1DPC 2R: Up to 7200+ MT/s |
| Features | Supports Intel POR Speed and JEDEC Speed Supports Memory Overclocking and Intel XMP 3.0 Supports Dual-Controller Dual-Channel Mode Supports Non-ECC, Un-buffered Memory Supports CUDIMM |
| Notes | The DIMM slots have single-sided latches. Memory compatibility and supported speeds depend on CPU and memory configuration. Check the Memory Compatibility List on MSI Support for more information. |
| Onboard Graphics | |
| Ports | 1x HDMI Supports HDMI 2.1, maximum resolution 4K 60Hz* 1x DisplayPort Supports DisplayPort 1.4, maximum resolution 4K 60Hz* *Available only on processors with integrated graphics. Specifications may vary depending on CPU. |
| Expansion Slots | |
| Slots | 1x PCI-E x16 Slot 1x PCI-E x4 Slot PCI_E1 (From CPU): PCIe 5.0, up to x16 PCI_E2 (From Chipset): PCIe 4.0, up to x4 |
| Audio | |
| Codec | Realtek ALC897 Codec |
| Channels | 7.1-Channel High Definition Audio |
| Storage | |
| Configuration | 2x M.2 M.2_1 (From CPU): PCIe 5.0 x4, supports 2280/2260/2242 devices M.2_2 (From Chipset): PCIe 4.0 x4, supports 2280/2260 devices 4x SATA 6G Ports |
| Notes | * Refer to the manual for M.2 SSD heatsink installation restrictions. |
| RAID | |
| Support | Supports RAID 0, RAID 1, RAID 5, and RAID 10 for SATA storage devices |
| USB | |
| Configuration | 2x USB 2.0 (Rear) 4x USB 2.0 (Front) 4x USB 5Gbps Type-A (Rear) 2x USB 5Gbps Type-A (Front) 1x USB 10Gbps Type-A (Front) 1x USB 20Gbps Type-C (Rear) |
| LAN | |
| Port | Realtek 8126 5Gbps LAN |
| Internal I/O | |
| Connectors | 1x Power Connector(ATX_PWR) 1x Power Connector(CPU_PWR) 1x Power Connector(PCIE_PWR 8pin) 1x CPU Fan 1x Combo Fan (Pump_Sys Fan) 2x System Fan 2x Front Panel (JFP) 1x Chassis Intrusion (JCI) 1x Front Audio (JAUD) 1x Tuning Controller connector(JDASH) 3x Addressable V2 RGB LED connector (JARGB_V2) 1x RGB LED connector(JRGB) 1x TPM pin header(Support TPM 2.0) 4x USB 2.0 ports 2x USB 5Gbps Type A ports 1x USB 10Gbps Type C ports |
| LED Features | |
| Indicators | 4x EZ Debug LED 1x EZ Memory Detection LED |
| Back Panel Ports | |
| Configuration |
|
| Operating System | |
| Support | Windows 11 64-bit |
| PCB Info | |
| Form Factor | mATX |
| Dimensions | 220mm x 243.84mm |
MSI PRO B860M-X
- Support Intel® Core™ Ultra Processors (Series 2) for LGA 1851 socket
- Supports DDR5 Memory, Dual Channel DDR5 9066+ MT/s (OC)
- Core Boost: With premium layout and digital power design to support more cores and provide better performance
- Memory Boost: Advanced technology to deliver pure data signals for the best performance, stability and compatibility
- EZ PCIe Clip II: Allows for easy removal of the graphics card by pressing the tail-like lock with one finger, even in the cramped case spaces.
- Lightning Fast Game experience: PCIe 5.0 slot and Lightning Gen 5 x4 M.2
- Audio Boost: Reward your ears with studio grade sound quality for the most immersive gaming experience
Overview
MSI PRO B860M-X
The MSI PRO B860M-X is designed for professionals and creators who need stable performance, fast connectivity, and reliable thermal control. Built for the latest Intel® Core™ Ultra Series 2 processors on the LGA 1851 socket, it supports high-speed DDR5 memory with dual-channel architecture and overclocking speeds up to 9066+ MT/s. Its Core Boost design, featuring a premium layout and advanced digital power delivery, ensures consistent performance even with multi-core CPUs, while Memory Boost technology delivers clean, stable data signals for improved compatibility and speed. The motherboard’s Frozr Guard thermal solution—complete with an extended heatsink, 7W/mK MOSFET pads, additional choke pads, and M.2 Shield Frozr—keeps temperatures in check during heavy workloads. For easy building and upgrades, the EZ PCIe Clip II makes removing graphics cards effortless, even in tight spaces. Storage and expansion get a major uplift with a next-gen PCIe 5.0 slot and Lightning Gen 5 x4 M.2 for ultra-fast transfer speeds. Networking is handled by an upgraded 5G LAN solution that offers secure, fast, and stable connections ideal for both professional and multimedia needs. Tying it all together, Audio Boost provides studio-grade sound quality, making the MSI PRO B860M-X a dependable and efficient choice for work, creativity, and everyday performance.









