MSI Pro B860M-A WiFi

Manufacturer: MSI

The MSI Pro B860M-A WiFi is a Micro-ATX motherboard built around Intel's B860 chipset and the LGA 1851 socket, making it suited for current-generation Intel processor platforms. It includes integrated wireless connectivity, with Wi-Fi 7 (802.11be) and Bluetooth 5.4 built in, alongside a dual BIOS setup and an easy CMOS reset feature for added convenience during configuration. RGB lighting is also present, and MSI lists a three-year warranty with the board.

On the memory side, the board supports DDR5 across four slots with a maximum capacity of 256GB, running at up to 6400 MHz natively or 8600 MHz overclocked via two memory channels. Expansion options include one PCIe 5.0 x16 slot, one PCIe 4.0 x16 slot, and two PCIe x1 slots, complemented by three M.2 sockets and four SATA 3 connectors with support for RAID 0, 1, 5, and 10. The rear I/O provides a range of connectivity, including a Thunderbolt 4 port, a USB 4 40Gbps port, HDMI 2.1, DisplayPort, and a PS/2 connector, while the board delivers 7.1-channel audio through three rear audio connectors.

Pros

Supports Wi-Fi 7 alongside all previous Wi-Fi generations down to Wi-Fi 4, covering a wide range of wireless standards
Includes both a Thunderbolt 4 port and a USB 4 40Gbps port on the rear I/O, offering high-bandwidth connectivity options
Three M.2 sockets combined with four SATA 3 connectors provide substantial storage expansion capacity
DDR5 memory support across four slots with a maximum capacity of 256GB and overclocked speeds up to 8600 MHz
Dual BIOS and easy CMOS reset features reduce the risk of being locked out after a failed update or configuration change
RAID 0, 1, 5, and 10 support gives flexibility for both performance-oriented and redundancy-focused storage setups

Cons

Micro-ATX form factor limits the total number of expansion slots, with only one PCIe 5.0 x16, one PCIe 4.0 x16, and two PCIe x1 slots available
No S/PDIF Out port, which restricts digital audio output options for users relying on optical connections
ECC memory is not supported, making the board unsuitable for workloads that require error-correcting RAM
No USB 3.2 Gen 2 Type-C port on the rear I/O, with the sole Type-C rear port limited to Gen 1 speeds
aptX Bluetooth audio codec is not supported, limiting wireless audio quality for compatible headsets or speakers

Who is this for?

This board is a solid fit for users building a capable desktop system in a compact footprint, as the Micro-ATX form factor keeps things manageable without sacrificing meaningful expansion. The combination of Wi-Fi 7, Bluetooth 5.4, Thunderbolt 4, and a USB 4 40Gbps port makes it well-suited for users who need modern, high-speed wired and wireless connectivity in one package. It also works well for those wanting flexible storage arrangements, given the three M.2 sockets, four SATA 3 connectors, and support for RAID 0, 1, 5, and 10, which covers both performance-focused and redundancy-minded setups.

Who is this NOT for?

Users who rely on ECC memory for error-correcting workloads — such as those running data-sensitive or server-adjacent tasks — will find this board inadequate, as ECC support is absent. The Micro-ATX layout also limits those who need a large number of expansion slots, making it a poor match for builds requiring multiple full-length PCIe cards simultaneously. Additionally, users who depend on S/PDIF optical audio output or aptX-capable Bluetooth audio will encounter missing functionality, as neither feature is present on this board.

General info:

CPU socket	LGA 1851
chipset	B860
form factor	Micro-ATX
supports Wi-Fi	✓
Wi-Fi version	Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax), Wi-Fi 6E (802.11ax), Wi-Fi 7 (802.11be)
Has Bluetooth	✓
Bluetooth version	5.4
HDMI version	HDMI 2.1
Easy to overclock	✓
has RGB lighting	✓
Easy to reset BIOS	✓
Has dual BIOS	✓
has aptX	✕
CPU sockets	1
Has integrated graphics	✕
warranty period	3 years
height	243.8 mm
width	243.8 mm
Has integrated CPU	✕

The MSI Pro B860M-A WiFi uses an LGA 1851 socket paired with the B860 chipset and comes in a Micro-ATX form factor measuring 243.8 mm × 243.8 mm, fitting standard mid-tower and smaller cases. Wireless connectivity spans from Wi-Fi 4 through to Wi-Fi 7 (802.11be), and Bluetooth 5.4 is also built in, though aptX is not supported. The board includes HDMI 2.1 output, RGB lighting, a dual BIOS setup, and an easy CMOS reset option, while overclocking is described as straightforward. There is a single CPU socket, no integrated CPU or integrated graphics, and the board carries a three-year warranty.

Memory:

maximum memory amount	256GB
RAM speed (max)	6400 MHz
overclocked RAM speed	8600 MHz
memory slots	4
DDR memory version	5
memory channels	2
Supports ECC memory	✕

This board supports DDR5 memory across four slots in a dual-channel configuration, with a maximum capacity of 256GB. The standard maximum RAM speed is 6400 MHz, which can be pushed to 8600 MHz when overclocked. ECC memory is not supported.

Ports:

USB 3.2 Gen 2 ports (USB-A)	1
USB 3.2 Gen 1 ports (USB-A)	2
USB 3.2 Gen 2 ports (USB-C)	0
USB 3.2 Gen 1 ports (USB-C)	1
USB 2.0 ports	2
USB 3.2 Gen 2x2 ports	0
USB 4 40Gbps ports	1
USB 4 20Gbps ports	0
Thunderbolt 4 ports	1
Thunderbolt 3 ports	0
has an HDMI output	✓
DisplayPort outputs	1
RJ45 ports	1
Has USB Type-C	✓
eSATA ports	0
DVI outputs	0
has a VGA connector	✕
PS/2 ports	1

The rear I/O panel offers a varied USB lineup, including one USB 3.2 Gen 2 Type-A port, two USB 3.2 Gen 1 Type-A ports, one USB 3.2 Gen 1 Type-C port, and two USB 2.0 ports, with no USB 3.2 Gen 2x2 or USB 4 20Gbps ports present. At the higher end, there is one USB 4 40Gbps port and one Thunderbolt 4 port, while Thunderbolt 3 is absent. Video output is handled by an HDMI port and one DisplayPort, with no DVI or VGA connector included. Networking is covered by a single RJ45 port, and legacy input device support is provided through one PS/2 port. There are no eSATA ports on this board.

Connectors:

USB 3.2 Gen 1 ports (through expansion)	4
USB-C 3.2 Gen 2 ports (through expansion)	1
USB 2.0 ports (through expansion)	4
SATA 3 connectors	4
fan headers	5
USB 3.0 ports (through expansion)	4
M.2 sockets	3
Has TPM connector	✓
U.2 sockets	0
Has mSATA connector	✕
SATA 2 connectors	0

Internal expansion connectivity includes four USB 3.2 Gen 1 headers, four USB 3.0 headers, one USB-C 3.2 Gen 2 header, and four USB 2.0 headers for adding front-panel ports. Storage is served by three M.2 sockets and four SATA 3 connectors, while SATA 2, mSATA, and U.2 are not present. The board also provides five fan headers for cooling management and includes a TPM connector for security module installation.

Expansion slots:

PCIe 4.0 x16 slots	1
PCIe 5.0 x16 slots	1
PCIe 3.0 x16 slots	0
PCIe x1 slots	2
PCI slots	0
PCIe 2.0 x16 slots	0
PCIe x4 slots	0
PCIe x8 slots	0

The board provides one PCIe 5.0 x16 slot and one PCIe 4.0 x16 slot for full-length expansion cards, along with two PCIe x1 slots for smaller add-in cards. There are no PCIe 3.0, PCIe 2.0, PCIe x4, PCIe x8, or legacy PCI slots available.

Audio:

audio channels	7.1
Has S/PDIF Out port	✕
audio connectors	3

The board delivers 7.1-channel audio output through three analog audio connectors on the rear I/O. An S/PDIF Out port is not included.

Storage:

Supports RAID 1	✓
Supports RAID 10 (1+0)	✓
Supports RAID 5	✓
Supports RAID 0	✓
Supports RAID 0+1	✕

The board supports RAID 0, 1, 5, and 10 configurations for flexible storage setup and redundancy options. RAID 0+1 is not supported.

Final Verdict

The MSI Pro B860M-A WiFi presents a well-rounded Micro-ATX package for users building a modern Intel-platform desktop with an emphasis on connectivity and storage flexibility. Its standout strength lies in its comprehensive wireless and high-speed I/O suite, combining Wi-Fi 7, Thunderbolt 4, and USB 4 40Gbps in a compact form factor that few boards of this size offer. Storage versatility is equally noteworthy, with three M.2 sockets, four SATA 3 connectors, and broad RAID support rounding out a feature set that suits a range of build configurations. Those with specific requirements around ECC memory, S/PDIF audio output, or extensive multi-card expansion may find certain gaps, but for mainstream desktop builds where modern connectivity takes priority, this board covers most bases confidently.