MSI Pro B850M-P Wi-Fi

Manufacturer: MSI

The MSI Pro B850M-P Wi-Fi is a Micro-ATX motherboard built around the AMD AM5 socket and B850 chipset, designed for users seeking a compact and capable platform. It includes onboard wireless connectivity with Wi-Fi 7 (802.11be) and Bluetooth 5.4, along with dual BIOS support and an easy CMOS reset feature for added reliability during setup and maintenance. RGB lighting and overclocking support round out its feature set for those who want flexibility without moving to a full-size board.

Memory support extends to four DDR5 slots across two channels, accommodating up to 256GB at speeds reaching 5600 MHz natively or 8200 MHz with overclocking. Storage options include three M.2 sockets and four SATA 3 connectors, with RAID 0, 1, 5, and 10 configurations available. The board carries a single PCIe 5.0 x16 slot alongside three PCIe x1 slots, and rear connectivity includes USB 3.2 Gen 2 ports in both Type-A and Type-C formats, HDMI 2.1, DisplayPort, and a single RJ45 Ethernet port. Audio output is handled by a 7.1-channel solution with three audio connectors, and the board ships with a three-year warranty.

Pros

Supports Wi-Fi 7 alongside older Wi-Fi standards, covering a wide range of wireless needs
Dual BIOS and easy CMOS reset provide added resilience during firmware updates or failed overclocks
Three M.2 sockets alongside four SATA 3 connectors give ample storage flexibility for a Micro-ATX board
DDR5 memory can be overclocked up to 8200 MHz, with support for up to 256GB across four slots
RAID 0, 1, 5, and 10 configurations are all supported, offering meaningful data redundancy and performance options
A single PCIe 5.0 x16 slot accommodates the latest generation of graphics cards and high-speed add-in cards

Cons

No PCIe 4.0 or secondary x16 slot limits multi-GPU or dual high-bandwidth card configurations
ECC memory is not supported, ruling out error-correcting RAM for reliability-sensitive workloads
No S/PDIF Out port restricts digital audio output options for home theater or external DAC setups
Lacks USB 4 and Thunderbolt ports, which may be limiting for users with high-speed peripherals or docking stations
No eSATA or mSATA connectors limits legacy or niche storage device compatibility

Who is this for?

This board is a solid fit for AMD AM5 desktop builds where space is a consideration but feature depth still matters. Users assembling a compact gaming or content creation PC will appreciate the PCIe 5.0 x16 slot for the latest discrete GPUs, DDR5 support with overclocking headroom up to 8200 MHz, and three M.2 sockets for fast NVMe storage. The broad wireless support up to Wi-Fi 7 makes it well suited for setups where a wired network connection is impractical, and the dual BIOS and easy CMOS reset features make it a reasonable choice for users who plan to experiment with memory or system overclocking without the risk of a bricked board.

Who is this NOT for?

Users who require ECC memory support for error-correcting workloads — such as those in scientific computing, financial applications, or data-sensitive environments — will find this board unsuitable. It is also a poor match for anyone needing Thunderbolt or USB 4 connectivity, as neither is available, which can be a meaningful limitation for creative professionals relying on high-speed external storage or advanced docking solutions. Additionally, those looking to run multiple high-bandwidth expansion cards simultaneously will be constrained by the single x16 slot and the absence of any secondary PCIe x8 or x4 slots.

General info:

CPU socket	AM5
chipset	B850
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 B850M-P Wi-Fi uses the AM5 CPU socket with a B850 chipset and comes in a Micro-ATX form factor, measuring 243.8 mm × 243.8 mm. It supports a single CPU and has no integrated graphics or integrated CPU. Wireless connectivity covers a broad range, from Wi-Fi 4 through Wi-Fi 7 (802.11be), and Bluetooth 5.4 is included, though aptX is not supported. The board features HDMI 2.1 output, onboard RGB lighting, and includes practical conveniences such as easy overclocking, a clear CMOS button, and dual BIOS for added resilience. A three-year warranty is provided.

Memory:

maximum memory amount	256GB
RAM speed (max)	5600 MHz
overclocked RAM speed	8200 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. Standard operation runs up to 5600 MHz, while overclocking can push speeds to 8200 MHz. 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)	1
USB 3.2 Gen 1 ports (USB-C)	0
USB 2.0 ports	4
USB 3.2 Gen 2x2 ports	0
USB 4 40Gbps ports	0
USB 4 20Gbps ports	0
Thunderbolt 4 ports	0
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	0

The rear I/O offers a varied USB selection, including one USB 3.2 Gen 2 Type-A port, two USB 3.2 Gen 1 Type-A ports, one USB 3.2 Gen 2 Type-C port, and four USB 2.0 ports; there are no USB 3.2 Gen 1 Type-C, Gen 2x2, USB 4, Thunderbolt 3, or Thunderbolt 4 ports. Video output is handled by one HDMI port and one DisplayPort, with no DVI or VGA connectors present. Networking is provided through a single RJ45 port, and there are no eSATA or PS/2 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	✓
Has mSATA connector	✕
SATA 2 connectors	0

Internal expansion headers include four USB 3.2 Gen 1 ports, four USB 3.0 ports, one USB-C 3.2 Gen 2 port, and four USB 2.0 ports for connecting front-panel and add-in devices. Storage connectivity is provided through three M.2 sockets and four SATA 3 connectors, while SATA 2 and mSATA are not available. A TPM connector is present for security module support, and five fan headers allow for flexible cooling management across the system.

Expansion slots:

PCIe 4.0 x16 slots	0
PCIe 5.0 x16 slots	1
PCIe 3.0 x16 slots	0
PCIe x1 slots	3
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 as the primary expansion interface, suited for modern discrete graphics cards and high-bandwidth add-in cards. Alongside it sit three PCIe x1 slots for smaller expansion cards. There are no PCIe 2.0, 3.0, or 4.0 x16 slots, and no PCIe x4, x8, or legacy PCI slots are present.

Audio:

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

Audio output supports a 7.1-channel configuration, with three analog audio connectors available on the rear panel. There is no S/PDIF Out port on this board.

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 (1+0) configurations, covering a range of performance and redundancy setups. RAID 0+1 is not supported.

Final Verdict

The MSI Pro B850M-P Wi-Fi delivers a well-rounded feature set within the Micro-ATX form factor, making it a capable choice for AMD AM5 builds that demand modern connectivity and storage flexibility without occupying a full-size footprint. Its Wi-Fi 7 support, PCIe 5.0 x16 slot, and three M.2 sockets reflect a board designed with current and near-future hardware in mind, while practical additions like dual BIOS and overclockable DDR5 memory up to 8200 MHz add genuine value for enthusiast builders. Those with specialized requirements — such as ECC memory, Thunderbolt connectivity, or multi-card expansion — will need to look elsewhere, but for mainstream gaming and productivity-focused AM5 builds in a compact chassis, this board covers the essentials with few notable gaps.