MSI PRO B860M-A WiFi Motherboard LGA 1851 Intel B860 mATX DDR5
MSI PRO B860M-A WiFi Motherboard LGA 1851 Intel B860 mATX DDR5, photo 2
MSI PRO B860M-A WiFi Motherboard LGA 1851 Intel B860 mATX DDR5, photo 3
MSI PRO B860M-A WiFi Motherboard LGA 1851 Intel B860 mATX DDR5, photo 4
MSI PRO B860M-A WiFi Motherboard LGA 1851 Intel B860 mATX DDR5, photo 5
MSI PRO B860M-A WiFi Motherboard LGA 1851 Intel B860 mATX DDR5, photo 6
MSI

MSI PRO B860M-A WiFi Motherboard LGA 1851 Intel B860 mATX DDR5

SKU HC-351796MPN 7E42-002R

  • LGA1851
  • B860
  • Micro-ATX

Highlights

  • Intel B860 chipset for LGA 1851 Arrow Lake CPUs
  • PCIe 5.0 x16 slot and one PCIe 5.0 M.2
  • Four DDR5 DIMM slots up to 256 GB at 8800 MT/s
  • Three M.2 slots and four SATA 6 Gbps ports
  • 5 Gbps LAN, Wi-Fi 7, and Bluetooth 5.4
  • Seven 4-pin PWM fan headers with VRM and M.2 heatsinks

Key specs

Socket
LGA1851
Chipset
B860
Form factor
Micro-ATX
Memory
DDR5
Wi-Fi
Yes
CPU Socket
1851
All specifications
$169.99
  • ≈ 0.002203 BTC
  • ≈ 0.07424 ETH
  • ≈ 170.16 USDT

In stock Ships by Tue, Nov 10 when paid today.

  • Delivery to the United States: $39.90 DHL Express Worldwide · arrives Wed, Nov 11 – Mon, Nov 16 if paid today
  • Rate locked at checkout Up to 60 min to send BTC, 30 min for ETH and USDT
  • New, sealed and genuine Manufacturer warranty: 3 years
  • 30-day returns Unused items in original packaging
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Overview

A Micro-ATX motherboard built on the Intel B860 chipset for LGA 1851 processors. It targets builders who want PCIe 5.0 graphics and storage plus modern wireless without overclocking the CPU.

Board Layout and Cooling

The Micro-ATX PCB uses a black finish with heatsinks on the VRM and M.2 slots. Seven 4-pin PWM headers provide plenty of fan or radiator connections. Internal RGB headers include one 12 V 4-pin and two 5 V 3-pin digital connectors.

Memory and Expansion

Four DIMM slots support up to 256 GB of DDR5. Standard speed is 5600 MT/s with XMP 3.0 profiles reaching 8800 MT/s. Expansion includes one PCIe 5.0 x16 slot, one PCIe 4.0 x4 slot, and two PCIe 4.0 x1 slots.

Storage Options

Three M.2 sockets are available: one PCIe 5.0 x4 and two PCIe 4.0 x4. Four SATA 6 Gbps ports handle additional drives. All M.2 slots sit under dedicated heatsinks.

Connectivity and Rear I/O

Rear panel offers one USB 3.1 Type-A, one USB 3.0 Type-C, two USB 3.0 Type-A, and two USB 2.0 Type-A ports. Video outputs include HDMI, DisplayPort, and a USB-C DisplayPort alt mode. Networking uses a Realtek 5 Gbps LAN controller alongside Wi-Fi 7 and Bluetooth 5.4.

PRO B860M-A WiFi Motherboard LGA 1851 Intel B860 mATX DDR5 specifications

General
BrandMSI
Manufacturer part no.7E42-002R
EAN4711377286565
Warranty3 years (manufacturer)
Form Factor
Motherboard Form FactorMicro-ATX
CPU
CPU ManufacturerIntel
CPU Socket1851
Motherboard
Motherboard ChipsetIntel B860
Memory
Max. Memory256 GB
Memory TypeDDR5
Memory Form FactorDIMM
Max. Memory Speed (Standard)5600 MT/s
Max. Memory Speed (OC)8800 MT/s
ECC SupportNo
Memory slots4x
Performance ProfileIntel XMP 3.0
Wi-Fi & LAN
LANYes
LAN Ports1x 5 Gbit/s
LAN ChipRealtek 8126
Wi-Fi / BluetoothYes
Wi-Fi StandardWi-Fi 7
Bluetooth Standard5.4
Cooling
M.2 HeatsinksYes
VRM HeatsinksYes
Internal Ports
CPU Power Supply1x 4-Pin + 1x 8-Pin
USB 3.0 / 3.1 / 3.2 (internal) Type C Header1
USB 3.0 / 3.1 / 3.2 (internal) Type C Possible Ports1
USB 3.0 (internal) Header2
Internal Ports (continued)
USB 3.0 (internal) Possible Ports4
USB 2.0 (internal) Header2
USB 2.0 (internal) Possible Ports4
RGB / LED connectors1x RGB (4-Pin 5050 12VGRB), 2x Digital RGB (3-Pin 5VDG)
Front Panel Audio HeaderYes
SPI TPM HeaderYes
External Ports
USB 3.1 (external) Type A1
USB 3.0 (external) Type C1
USB 3.0 (external) Type A2
USB 2.0 (external) Type A2
Display ConnectorsDisplayPort (1x), HDMI (1x), USB Type C (Display Port shared) (1x)
Storage Ports
M.2 PCIe 4.0 x21
M.2 PCIe 4.0 x41
M.2 PCIe 5.0 x41
SATA 6G (internal)4
Expansion Slots
PCIe x16 slots (total)1
PCIe x4 slots (total)1
PCIe x1 slots (total)2
PCIe 5.0 x16 mechanical slot1
PCIe 4.0 x16 mechanical slot3
Fan Header
4 Pin Fan Connectors7
Audio
SoundchipRealtek ALC897
Back Connect
Back ConnectNo
Water Cooling
WatercoolingNo
Lighting
Lighting / RGBYes
Color
Primary ColorBlack

Specifications come from the manufacturer and can change without notice. Check the box contents and compatibility before ordering; our team answers questions within one business day.

Shipping & returns

Delivery to the United States: $39.90DHL Express Worldwide · arrives Wed, Nov 11 – Mon, Nov 16 if paid today

Ships from our warehouse in Germany: in stock, it leaves within 1–2 business days, tracked to the door.
ToBusiness daysThis item
GermanyDHL Paket1–2Free
Other EU countriesDHL Parcel International2–8$11.90–$15.90
UK, Switzerland and NorwayDHL Parcel International3–7$24.90
United States and CanadaDHL Express Worldwide2–5$39.90
Asia and the Middle EastDHL Express Worldwide2–5$49.90
Australia and New ZealandDHL Express Worldwide3–6$59.90
  • Discreet packaging Plain, unbranded box — no crypto or brand references outside
  • Returns 30 days for unused items in original packaging; faulty items are on us
Rates and delivery times by country

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