MSI PRO B860M-C EX
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MSI PRO B860M-C EX

  • 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
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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 on this motherboard have single-sided latches.
Memory compatibility and supported speeds vary depending on CPU and memory configuration.
Refer to the Memory Compatibility List on MSI Support for details.
Onboard Graphics
Ports 1x HDMI – Supports HDMI 2.1, maximum resolution 4K 60Hz*
1x DisplayPort – Supports DisplayPort 1.4, maximum resolution 4K 60Hz*
1x Type-C DisplayPort – Supports DisplayPort 1.4 over USB Type-C, maximum resolution 4K 60Hz*
1x DVI-D – Supports up to 1920×1200 60Hz*
1x VGA – Supports up to 2048×1536 50Hz, 2048×1280 60Hz, 1920×1200 60Hz**Available only on processors featuring integrated graphics. Specifications may vary depending on CPU.
**This motherboard supports up to four displays simultaneously. Using all five display ports will disable the DVI-D port.
Expansion Slots
Slots 1x PCI-E x16 Slot
2x PCI-E x1 Slots
1x PCI SlotPCI_E1 Gen PCIe 5.0 – up to x16 (From CPU)
PCI_E2 Gen PCIe 4.0 – up to x1 (From Chipset)
PCI_E3 Gen PCIe 4.0 – up to x1 (From Chipset)
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 devices
M.2_2 (From Chipset): PCIe 4.0 x4 – supports 2280 / 2260 devices
4x SATA 6G*Refer to the manual for M.2 SSD heatsink restrictions.
RAID
Support Supports RAID 0, RAID 1, RAID 5, 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 (Rear)
1x USB 10Gbps Type-C (Rear)
LAN
Port Realtek 8125 2.5Gbps LAN
Internal I/O
Connectors 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)
1x Printer Port (JLPT)
1x Com Port (JCOM)
1x TPM pin header(Support TPM 2.0)
4x USB 2.0 ports
2x USB 5Gbps Type A ports
LED Features
Indicators 4x EZ Debug LED
1x EZ Memory Detection LED
Back Panel Ports
Ports

  1. COM Port
  2. VGA
  3. Keyboard / Mouse Port
  4. USB 5Gbps Type-A
  5. 2.5G LAN
  6. Audio Connectors
  7. DisplayPort
  8. HDMI
  9. DVI-D
  10. USB 2.0
  11. USB 10Gbps Type-A
  12. USB 10Gbps Type-C (DisplayPort over Type-C)
Operating System
Support Windows 11 64-bit
Box Content
INCLUDES
PCB INFO
mATX
243.84mmx220mm

Overview

MSI PRO B860M-C EX

The MSI PRO B860M-C EX is designed for users who want dependable performance, modern connectivity, and smooth multitasking in a Micro-ATX form factor. Built to support Intel® Core™ Ultra Processors (Series 2) on the LGA 1851 socket, it delivers strong processing power for both productivity and professional workloads. With support for dual-channel DDR5 memory up to 9066+ MT/s (OC), this motherboard ensures ultra-fast data transfer, improved responsiveness, and excellent overall system efficiency.

MSI’s Core Boost architecture and premium digital power design help the board handle multi-core processors with stability and consistency. Paired with Memory Boost technology, it ensures clean memory signals for better compatibility and long-term reliability. For builders, the EZ PCIe Clip II makes removing GPUs effortless—even in tight cases—adding convenience during upgrades or maintenance.

In terms of performance, the motherboard includes a PCIe 5.0 slot and Lightning Gen 5 x4 M.2, providing next-generation bandwidth for high-speed SSDs and future-ready graphics cards. Connectivity is one of the strongest aspects of this model, offering USB Type-C with DP-Alt, DisplayPort, HDMI, DVI, and D-SUB, making it highly versatile for multi-display or professional setups.

Networking is handled by 2.5G LAN, delivering faster, more stable, and secure connections ideal for work, media, or large data transfers. To complete the experience, Audio Boost enhances sound quality with clear, studio-grade audio, making it suitable for entertainment, editing, or immersive usage scenarios.

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