MSI Pro B850-P WiFi specifications and in-depth review

MSI Pro B850-P WiFi

Manufacturer: MSI

The MSI Pro B850-P WiFi is an ATX form factor motherboard built around the AM5 socket, designed to accommodate AMD processors on the B850 chipset platform. It includes Wi-Fi 7 (802.11be) connectivity alongside Bluetooth 5.4, a dual BIOS setup for added reliability, and RGB lighting. The board ships with a three-year warranty and supports easy BIOS resets via a dedicated clear CMOS feature.

On the memory side, the board provides four DDR5 slots across two channels, supporting standard speeds up to 5600 MHz and overclocked profiles reaching 8200 MHz, with a maximum capacity of 256GB. Expansion options include one PCIe 5.0 x16 slot and one PCIe 4.0 x16 slot, complemented by two PCIe x1 slots and three M.2 sockets. The rear I/O offers a mix of USB ports including two USB 3.2 Gen 2 Type-C and four USB 2.0 connections, one HDMI 2.1 output, an RJ45 port, and S/PDIF output alongside 7.1-channel audio on two connectors. Storage is backed by four SATA 3 connectors with RAID 0 and RAID 1 support.

Pros
  • Supports Wi-Fi 7 alongside backward-compatible Wi-Fi 4 through 6E, covering a wide range of wireless standards
  • Dual BIOS provides a fallback option if one BIOS becomes corrupted or fails during an update
  • DDR5 memory can be overclocked up to 8200 MHz, with four slots supporting up to 256GB total capacity
  • Three M.2 sockets allow for multiple fast storage devices without occupying SATA ports
  • Six fan headers offer flexibility for managing cooling across the system
  • Comes with a three-year warranty
Cons
  • No DisplayPort output limits video connectivity to the single HDMI 2.1 port
  • ECC memory is not supported, which rules out error-correcting RAM configurations
  • Only RAID 0 and RAID 1 are available; RAID 5, RAID 10, and RAID 0+1 are not supported
  • No USB 4 or Thunderbolt ports are present on the rear I/O
  • Bluetooth aptX is not supported, limiting high-quality wireless audio codec options
Who is this for?

This board suits builders putting together an AM5-based desktop system who want room to grow, thanks to its four DDR5 slots with overclocking support up to 8200 MHz and a PCIe 5.0 x16 slot for current-generation graphics cards. The three M.2 sockets make it a practical fit for users who rely on multiple fast NVMe drives without sacrificing SATA ports. It also works well for those who need reliable wireless connectivity, as Wi-Fi 7 support covers the latest networking standards, and the dual BIOS adds a layer of resilience that benefits anyone who frequently experiments with firmware updates or overclocking settings.

Who is this NOT for?

Users who need Thunderbolt or USB 4 connectivity for high-bandwidth peripherals or external storage enclosures will find this board lacking, as none of those ports are present. It is also a poor fit for workstation or server-oriented builds that depend on ECC memory for error correction, since that is not supported. Additionally, anyone requiring multiple display outputs or a DisplayPort connection for monitors will be constrained by the single HDMI 2.1 port, making this board unsuitable for multi-monitor setups that go beyond one display.

General info:

CPU socket AM5
chipset B850
form factor 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 304.8 mm
Has integrated CPU

The MSI Pro B850-P WiFi is built around the AM5 socket with a B850 chipset and follows the standard ATX form factor, measuring 304.8 mm wide and 243.8 mm tall. It supports a single CPU and does not include an integrated CPU or integrated graphics. Wireless connectivity spans Wi-Fi 4 through Wi-Fi 7 (802.11be), and Bluetooth 5.4 is also present, though aptX is not supported. Video output is handled through an HDMI 2.1 port. The board includes RGB lighting, a dual BIOS setup, and a clear CMOS feature for straightforward BIOS resets, while overclocking is supported. A three-year warranty is included.

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 RAM speeds top out at 5600 MHz, while overclocked profiles can reach 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) 1
USB 3.2 Gen 2 ports (USB-C) 2
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 0
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 provides a total of eight USB ports: one USB 3.2 Gen 2 Type-A, one USB 3.2 Gen 1 Type-A, two USB 3.2 Gen 2 Type-C, and four USB 2.0 ports. There are no USB 3.2 Gen 2x2, USB 4, Thunderbolt 3, or Thunderbolt 4 ports present. For display output, an HDMI port is available, while DisplayPort, DVI, and VGA outputs are absent. Networking is covered by a single RJ45 port, and there are no eSATA or PS/2 ports included.

Connectors:

USB 3.2 Gen 1 ports (through expansion) 4
USB 2.0 ports (through expansion) 4
SATA 3 connectors 4
fan headers 6
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 connectivity includes three M.2 sockets and four SATA 3 connectors for storage, with no SATA 2, U.2, or mSATA options present. Expansion headers allow for four additional USB 3.2 Gen 1 ports, four USB 3.0 ports, and four USB 2.0 ports. Cooling is supported through six fan headers, and a TPM connector is also available on the board.

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 offers four PCIe slots in total: one PCIe 5.0 x16 slot, one PCIe 4.0 x16 slot, and two PCIe x1 slots. There are no PCIe 2.0, PCIe 3.0 x16, PCIe x4, PCIe x8, or legacy PCI slots available.

Audio:

audio channels 7.1
Has S/PDIF Out port
audio connectors 2

Audio support covers 7.1 channels, with two analog audio connectors on the rear I/O and a S/PDIF output port for digital audio passthrough.

Storage:

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

The board supports RAID 0 and RAID 1 configurations, while RAID 5, RAID 10, and RAID 0+1 are not available.

Final Verdict

The MSI Pro B850-P WiFi is a well-rounded ATX motherboard for AM5 builds that balances modern connectivity with practical expandability. Its Wi-Fi 7 support, PCIe 5.0 slot, and DDR5 overclocking headroom up to 8200 MHz make it a capable foundation for a current-generation desktop, while features like dual BIOS and six fan headers add reliability and thermal flexibility. It does fall short for users with specific needs around Thunderbolt, ECC memory, or multi-display output, so it is best suited to mainstream desktop builds rather than workstation or content-creation setups with demanding peripheral requirements. Overall, it is a technically complete option for AMD AM5 platform builds where wireless performance and storage flexibility are priorities.

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