
- Model:PRO B860M-S
- Intel Core Ultra Series 2, LGA 1851
- B860 Chipset, mATX Form Factor
- DDR5 Memory Support up to 8800 MT/s
- PCIe 5.0, 2.5G LAN, Audio Boost
- 3 Years Warranty from MSI
Overview
The MSI PRO B860M-S is a professional-grade micro-ATX motherboard engineered for Intel Core Ultra Processors (Series 2) on the LGA 1851 socket. Featuring the B860 chipset, this board combines simplicity with performance, offering a harmonious design that matches both white and black PC builds.
Key specifications include support for DDR5 memory up to 8800 MT/s (OC), PCIe 5.0 slot with Lightning Gen 4 x4 M.2 storage, and a robust 2.5G LAN connection for professional and multimedia use. The motherboard is equipped with advanced cooling solutions including Frozr AI Cooling and multiple fan headers for system optimization.
The PRO B860M-S delivers enhanced audio quality through Audio Boost technology with isolated analog structure, ensuring studio-grade sound. Additional features include EZ DIY design with EZ PCIe Clip II for easy GPU installation, Click BIOS X for intuitive system configuration, and comprehensive protection with TVS, OCP, and stainless steel I/O shielding.
- Supports Intel Core Ultra Processors (Series 2) LGA 1851
- B860 Chipset with mATX form factor (220mm x 243.84mm)
- DDR5 Memory: 2x UDIMM slots, up to 128GB, 8800-6400 MT/s (OC)
- PCIe 5.0 x16 slot with Steel Armor reinforcement
- 1x M.2 PCIe 4.0 x4 slot (Lightning Gen 4)
- 2.5G LAN with AI LAN Manager for optimized networking
- Audio Boost with Realtek ALC897 codec, 7.1-channel HD audio
- 4x SATA 6G ports for storage expansion
- USB connectivity: 4x USB 2.0 rear, 4x USB 2.0 front, 2x USB 5Gbps Type-A rear, 2x USB 5Gbps Type-A front, 1x USB 5Gbps Type-C front
- HDMI 2.1 and DisplayPort 1.4 for 4K 60Hz display output
- Frozr AI Cooling with auto-detect fan support
- EZ DIY features: EZ PCIe Clip II, EZ Debug LED, EZ Memory Detection LED
- Click BIOS X with XMP 3.0 support and one-click overclocking
- MSI Center software with AI Engine, Mystic Light, and Cooling Wizard
- Advanced protection: TVS, OCP, stainless steel I/O shield, grounding structure
Specifications
- Chipset
- INTEL B860
- CPU
- Supports Intel® Core™ Ultra Processors (Series 2) LGA 1851
- Memory
- 2x DDR5 UDIMM, Maximum Memory Capacity 128GB Memory Support DDR5 8800 - 6400 (OC) MT/s / 6400 - 4800 (JEDEC) MT/s Max. overclocking: • 1DPC 1R Max speed up to 8800 MT/s • 1DPC 2R Max speed up to 6400 MT/s 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 • The DIMM slots on this motherboard have double-sided latches. • Memory compatibility and supported speeds can vary depending on the CPU and memory configuration. For detailed information, please refer to the Memory Compatibility List available on the product’s Support page or visit https://www.msi.com/support/.
- Onboard Graphics
- 1x HDMI™ Support HDMI™ 2.1, maximum resolution of 4K 60Hz* 1x DisplayPort Support DisplayPort 1.4, maximum resolution of 4K 60Hz* *Available only on processors featuring integrated graphics. Graphics specifications may vary depending on the CPU installed.
- Slot
- 1x PCI-E x16 slot 1x PCI-E x1 slot PCI_E1 Gen PCIe 5.0 supports up to x16 (From CPU) PCI_E2 Gen PCIe 4.0 supports up to x1 (From Chipset)
- Audio
- Realtek® ALC897 Codec 7.1-Channel High Definition Audio
- Storage
- 1x M.2 M.2_1 Source (From Chipset) supports up to PCIe 4.0 x4 , supports 2280/2260 devices 4x SATA 6G *Please refer to the manual for M.2 SSD heatsink restrictions.
- USB
- 4x USB 2.0 (Rear) 4x USB 2.0 (Front) 2x USB 5Gbps Type A (Rear) 2x USB 5Gbps Type A (Front) 1x USB 5Gbps Type C (Front)
- LAN
- Realtek® 8125D 2.5Gbps LAN
- Internal IO
- 1x Power Connector(ATX_PWR) 1x Power Connector(CPU_PWR) 1x CPU Fan 2x System Fan 2x Front Panel (JFP) 1x Chassis Intrusion (JCI) 1x Front Audio (JAUD) 3x Addressable V2 RGB LED connector (JARGB_V2) 1x TPM pin header(Support TPM 2.0) 4x USB 2.0 ports 2x USB 5Gbps Type A ports 1x USB 5Gbps Type C ports
- LED FEATURE
- 4x EZ Debug LED 1x EZ Memory Detection LED
- BACK PANEL PORTS
- 1. DisplayPort 2. USB 5Gbps Type-A 3. USB 2.0 4. 2.5G LAN 5. Audio Connectors 6. HDMITM 7. USB 2.0
- OPERATING SYSTEM
- Support for Windows® 11 64-bit
- PCB Info
- mATX 220mmx243.84mm
Warranty
3 Years manufacturer warranty from MSI. Warranty service is provided by the brand's authorised service centre under the brand's own terms; keep the original invoice and the serial number for any claim, and we will guide you through the process. Details are in our Warranty Policy.






