MSI PRO B860-P

  • Support Intel® Core™ Ultra Processors (Series 2) for LGA 1851 socket
  • Supports DDR5 Memory, Dual Channel DDR5 8800+ MT/s (OC)
  • Ultra Performance: 12+1+1+1 Duet Rail Power System with P-PAK, 8+4-pin CPU power connectors, Core Boost, Memory Boost, 6-layer server-grade PCB
  • Frozr Guard: Extended Heatsink, MOSFET thermal pads rated for 7W/mK, additional choke thermal pads and EZ M.2 Shield Frozr II are built for high performance system and non-stop experience
  • EZ DIY: EZ M.2 Shield Frozr II, EZ M.2 Clip II, EZ PCIe Clip II and EZ Antenna
  • 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 4x DDR5 UDIMM, Maximum Memory Capacity 256GB
Memory Support DDR5 8800 – 6400 (OC) MT/s / 6400 – 4800 (JEDEC) MT/s
Max Overclocking Frequency 1DPC 1R: Up to 8800+ MT/s
1DPC 2R: Up to 7200+ MT/s
2DPC 1R: Up to 6400+ MT/s
2DPC 2R: Up to 5600+ 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 depend on the CPU and memory configuration.
Refer to the Memory Compatibility List at MSI Support.
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
Thunderbolt 4 port supports DisplayPort 2.1 (UHBR20) over USB Type-C, maximum 4K@120Hz / 8K@60Hz*
*Available only with processors featuring integrated graphics. Specifications may vary depending on CPU installed.
Expansion Slots
Slots 4x PCI-E x16 Slots
PCI_E1 Gen PCIe 5.0 supports up to x16 (From CPU)
PCI_E2 Gen PCIe 4.0 supports up to x1 (From Chipset)
PCI_E3 Gen PCIe 4.0 supports up to x4 (From Chipset)
PCI_E4 Gen PCIe 4.0 supports up to x1 (From Chipset)
Audio
Codec Realtek ALC897 Codec
Channels 7.1-Channel High Definition Audio
Storage
Configuration 3x 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 2280/2260/2242 devices
M.2_3 (From Chipset): PCIe 4.0 x2, supports 2280/2260 devices
4x SATA 6G
Notes * Refer to the manual for M.2 SSD heatsink restrictions.
RAID
Support Supports RAID 0, RAID 1, RAID 5, and RAID 10 for SATA storage devices
Onboard Thunderbolt
Port 1x Thunderbolt 4 Port (Rear)
Performance Supports up to 40Gbps transfer rate with Thunderbolt devices
Supports up to 20Gbps with USB4 devices
Supports up to 10Gbps with USB 3.2 devices
Supports 5V/3A (15W) power charging
Each port can daisy-chain up to three Thunderbolt 4 devices or five Thunderbolt 3 devices
Supports up to 8K display output
USB
Configuration 4x USB 2.0 (Rear)
4x USB 2.0 (Front)
2x USB 5Gbps Type-A (Rear)
4x USB 5Gbps Type-A (Front)
2x USB 10Gbps Type-A (Rear)
1x USB 10Gbps Type-C (Front)
LAN
Port Realtek 8126 5Gbps LAN
Internal I/O
Connectors 1x Thunderbolt 5 Card Connector (JTBT5, supports RTD3)
1x ATX Power (ATX_PWR)
2x CPU Power (CPU_PWR)
1x PCIe Power (8-pin)
1x CPU Fan
1x Combo Fan (Pump_Sys Fan)
4x System Fans
2x Front Panels (JFP)
1x Chassis Intrusion (JCI)
1x Front Audio (JAUD)
1x COM Port (JCOM)
1x Tuning Controller Connector (JDASH)
2x Addressable V2 RGB (JARGB_V2)
1x RGB LED (JRGB)
1x TPM Header (Supports TPM 2.0)
4x USB 2.0 Ports
4x USB 5Gbps Type-A Ports
1x USB 10Gbps Type-C Port
LED Features
Indicators 4x EZ Debug LED
Back Panel Ports
Configuration

  1. DisplayPort
  2. USB 2.0
  3. USB 5Gbps Type-A
  4. 5G LAN
  5. Wi-Fi / Bluetooth
  6. Audio Connectors
  7. HDMI
  8. Thunderbolt 4 40Gbps (Type-C)
  9. USB 10Gbps Type-A
  10. Clear CMOS Button
Operating System
Support Windows 11 64-bit
Box Content
INCLUDES
PCB INFO
ATX
243.84mmx304.8mm

Overview

MSI PRO B860-P

The MSI PRO B860-P is a robust, performance-focused motherboard built to power the next generation of professional and productivity systems. Supporting Intel® Core™ Ultra Processors (Series 2) on the LGA 1851 socket, it delivers exceptional speed and efficiency, further enhanced by support for dual-channel DDR5 memory reaching 8800+ MT/s (OC) for accelerated multitasking, rendering, and data-heavy workloads.

Engineered for durability and sustained high performance, the board features a 12+1+1+1 Duet Rail Power System with P-PAK components, paired with 8+4-pin CPU power connectors and a 6-layer server-grade PCB. This ensures stable power delivery even under heavy stress. Its Frozr Guard thermal design, equipped with an extended heatsink, 7W/mK MOSFET thermal pads, choke pads, and the EZ M.2 Shield Frozr II, keeps the system cool and consistent during long sessions.

With next-gen expansion support, the MSI PRO B860-P offers a PCIe 5.0 slot and Lightning Gen 5 x4 M.2, enabling ultra-fast storage and maximum performance for modern graphics cards and NVMe SSDs. For advanced connectivity, it includes a Thunderbolt™ 4 port and 5G LAN, ensuring ultra-stable, high-speed networking for professional workflows, cloud operations, and large data transfers.

Installation and upgrades are effortless thanks to EZ M.2 Shield Frozr II, EZ M.2 Clip II, EZ PCIe Clip II, and EZ Antenna. Combined with Audio Boost for studio-grade sound, the MSI PRO B860-P is a dependable, high-performance motherboard designed for creators, professionals, and power users who need both reliability and next-level speed.

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