MSI B860M GAMING PLUS WIFI Micro-ATX Motherboard

Chipset

INTEL B860

CPU Support

Supports Intel® Core™ Ultra Processors (Series 2) on LGA 1851

Memory

- Slots: 4x DDR5 UDIMM
- Maximum Capacity: 256GB
- Supported Speeds:
  • 8800 - 6400 (OC) MT/s
  • 6400 - 4800 (JEDEC) MT/s
- Max. Overclocking Frequencies:
  • 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
- Supports Intel® POR Speed, JEDEC Speed, Memory Overclocking, and Intel® XMP 3.0
- Dual-Controller Dual-Channel mode
- Non-ECC, Un-buffered, and CUDIMM memory
- Note: DIMM slots feature single-sided latches. Memory compatibility may vary—please check the MSI Support page for the Memory Compatibility List.

Onboard Graphics

- 1x HDMI™ (HDMI 2.1, supports up to 4K 60Hz*)
- 1x DisplayPort (DP 1.4, supports up to 4K 60Hz*)
- 1x Type-C DisplayPort (Thunderbolt™ 4; supports DP 2.1, up to 4K@120Hz / 8K@60Hz*)
*Available only with processors featuring integrated graphics.

Expansion Slots

4x PCI-E x16 slots:
- PCI_E1: PCIe 5.0 x16 (from CPU)
- PCI_E2: PCIe 4.0 x1 (from Chipset)
- PCI_E3: PCIe 4.0 x1 (from Chipset)
- PCI_E4: PCIe 4.0 x4 (from Chipset)

Audio

Realtek® ALC897 Codec with 7.1-Channel High Definition Audio

Storage

- M.2 Slots: 3x
  • 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
  • M.2_3: (From Chipset) PCIe 4.0 x2; supports 2280 devices
- SATA: 4x SATA 6G
Refer to the manual for any M.2 SSD heatsink restrictions.

RAID

Supports RAID 0, RAID 1, RAID 5, and RAID 10 for SATA storage devices

Onboard Thunderbolt

1x Thunderbolt4 port (Rear) featuring:
- Up to 40Gbps transfer rate with Thunderbolt devices
- Up to 20Gbps with USB4 devices
- Up to 10Gbps with USB 3.2 devices
- Supports 5V/3A (15W) power charging
- Daisy-chain support: up to 3 Thunderbolt 4 or 5 Thunderbolt 3 devices
- Supports up to 8K display

USB Ports

Rear:
- 2x USB 2.0
- 2x USB 5Gbps (1 Type A & 1 Type C)
- 1x USB 10Gbps Type A
Front:
- 4x USB 2.0
- 4x USB 5Gbps Type A
- 1x USB 10Gbps Type C

LAN

Intel® Killer™ E5000 5Gbps LAN

Internal I/O Connectors

- 1x Thunderbolt5 card connector (JTBT5, supports RTD3)
- 1x ATX power connector
- 2x CPU power connectors
- 1x PCIe power connector (8-pin)
- 1x CPU Fan header
- 1x Combo Fan (Pump_Sys Fan) header
- 3x System Fan headers
- 1x EZ Conn-header (JAF_1)
- 2x Front Panel headers (JFP)
- 1x Chassis Intrusion header (JCI)
- 1x Front Audio header (JAUD)
- 1x Com Port header (JCOM)
- 1x Tuning Controller connector (JDASH)
- 2x Addressable V2 RGB LED connectors (JARGB_V2)
- 1x RGB LED connector (JRGB)
- 1x TPM header (supports TPM 2.0)
- Additional internal USB headers: 4x USB 2.0, 4x USB 5Gbps Type A, and 1x USB 10Gbps Type C

Wireless LAN & Bluetooth

- Wireless: Intel® Killer™ BE1750x Wi-Fi 7 (pre-installed in the M.2 Key-E slot)
• Supports MU-MIMO, 2.4GHz/5GHz/6GHz (320MHz) up to 5.8Gbps, and 802.11 a/b/g/n/ac/ax/be
- Bluetooth: Bluetooth® 5.4 with MLO and 4KQAM
Note: 6GHz support and Bluetooth version details may vary by region and OS.

LED Feature

4x EZ Debug LEDs

Back Panel Ports

- Display Port
- Clear CMOS Button
- 5G LAN
- Wi-Fi/Bluetooth
- Audio Connectors
- HDMI™
- Thunderbolt™ 4 40Gbps (Type-C)
- USB 2.0
- USB 5Gbps (Type-A and Type-C)
- USB 10Gbps (Type-A)

Operating System

Supports Windows® 11 (64-bit)

PCB/Form Factor

mATX; Dimensions: 243.84mm x 243.84mm