Build a sleek, compact Intel system with this silver micro-ATX LGA1851 motherboard based on the Intel B860 chipset, designed for Core Ultra 200-series (Arrow Lake) CPUs. It supports up to 256GB DDR5 across four DIMM slots, including high-speed overclocking up to DDR5-8600 (OC). Storage is fast and flexible with 3x PCIe M.2 slots plus 4x SATA ports and RAID support. Connectivity is next-gen with Intel Wi-Fi 7 + Bluetooth 5.4 and ultra-fast 5G LAN (Realtek 8126). Rear I/O includes HDMI + DisplayPort (iGPU CPU required) and USB ports, plus a Thunderbolt 4 USB-C port with DisplayPort 2.1 UHBR20 support. Customize lighting with RGB/ARGB headers and keep your build cool using 5 PWM fan headers. Includes EZ WiFi antenna, SATA cable, and tool-free EZ M.2 clips.
MSI PRO B860M-A WIFI, motherboard (silver)
| type | Mainboard |
| Color | silver |
| EAN | 4711377286565 |
| Manufacturer's No. | 7E42-002R |
| base | 1851 |
| Maximum supported CPUs | 1 |
| operating system | Support |
| processor | |
| Supported models |
Core Ultra 3 2xx (Arrow Lake), Core Ultra 5 2xx (Arrow Lake), Core Ultra 5 2xxF (Arrow Lake), Core Ultra 5 2xxK (Arrow Lake), Core Ultra 5 2xxKF (Arrow Lake), Core Ultra 5 2xxT (Arrow Lake), Core Ultra 7 2xx (Arrow Lake), Core Ultra 7 2xxF (Arrow Lake), Core Ultra 7 2xxK (Arrow Lake), Core Ultra 7 2xxKF (Arrow Lake), Core Ultra 7 2xxT (Arrow Lake), Core Ultra 9 2xx (Arrow Lake), Core Ultra 9 2xxK (Arrow Lake), Core Ultra 9 2xxKF (Arrow Lake), Core Ultra 9 2xxT (Arrow Lake) |
| Chipset | Intel® B860 |
| slots | |
| PCIe x16 |
4x (of which: 1x PCIe x16, 1x PCIe x4, 2x PCIe x1) |
| Form factor | µATX |
| use | PC |
| power supply |
ATX12V (24-Pin + 2x 8-Pin) |
| memory | |
| maximum | 256 GB |
| Number of sockets | 4x DDR5 |
| supported standards |
DDR5-8600 - 6400 (OC), 6400 - 4800 (JEDEC) |
| Channels | 2 |
| Maximum storage ranks | 8 |
| Memory controller in CPU | Yes |
| Maximum data density | 8192 Mbit |
|
External connections |
|
| USB-A 3.2 Gen 2 (10 Gbit/s) | 1 |
| USB-C 3.2 Gen 1 (5 Gbit/s) | 1 |
| USB-A 3.2 Gen 1 (5 Gbit/s) | 2 |
| A notice: |
The designation USB 3.2 Gen 1 corresponds to the earlier designations USB 3.1 Gen 1 and USB 3.0. |
| USB-A 2.0 | 2 |
| HDMI | 1 |
| DisplayPort-Out | 1 |
| microphone | 1 |
| Line-In | 1 |
| Line-Out | 1 |
| RJ-45 | 1 |
| Bluetooth | Yes |
| Wi-Fi | Yes |
|
Internal connections |
|
| SATA | 4 |
| M.2 | 3 |
| M.2 Module Key | M |
| M.2 interface | PCIe |
| M.2 Length | 42 - 80 mm |
| RGB LED Header | 1 |
| addressable RGB LED header | 2 |
| USB-C 3.2 Gen 2 (10 Gbit/s) | 1 |
| 4-pin PWM fan | 5 |
|
Connections (optional) |
|
| USB 3.2 Gen 1 (5 Gbit/s) | 4 |
| USB 2.0 | 4 |
| Thunderbolt | 1 |
| TPM | Yes |
| SATA controller | Intel® B860 |
| directly usable RAID levels | 0, 1, 10, 5 |
| USB controller | Intel® B860 |
| Onboard graphics |
The motherboard's graphics ports can only be used when using a CPU with an integrated graphics chip. |
| Sound | Realtek ALC897 |
| LAN |
Realtek 8126 5G LAN |
|
Intel® Wi-Fi 7, Bluetooth 5.4 |
|
| Features |
1x Thunderbolt 4 USB-C port with DisplayPort 2.1 and UHBR20 support. |
| Further information |
To support the latest processor cores, a BIOS update may be required. |
| Accesories | |
| available |
EZ WiFi antenna, SATA cable, EZ M.2 Clip II, EZ M.2 Clip II Remover |
| Dimensions |
Width: 243.84 mm x Height: 243.84 mm |
| Weight | 1000 grams |
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