MSI PRO B550M-P WIFI6E AM4 mATX Motherboard
- Processor Socket: Socket AM4
- Chipset Type: AMD B550
- Chipset Family: AMD
- RAM Memory Technology: DDR4
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A straightforward AM4 board with Wi-Fi 6E and PCIe 4.0 aimed at builders upgrading an older Ryzen system who don't need gaming-focused extras.
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ASIN: B0H6RBC8D4Model: B550M-PCategory: Motherboards
Overview
An AM4 micro-ATX motherboard for Ryzen 5000, 5000 G-Series, 4000 G-Series and 3000 series processors, with DDR4 support to 4400+ MT/s OC, PCIe 4.0 and built-in Wi-Fi 6E.
MSI markets this as a ProSeries board rather than a gaming flagship, pairing an EZ Debug LED and EZ Mounting for simpler builds with Wi-Fi 6E for faster, more stable wireless than the older 802.11ac standard. It covers four generations of AM4 Ryzen chips, which suits anyone upgrading an older AM4 system rather than building fresh.
- AM4 socket, Ryzen 5000/4000 G/3000 support
- DDR4 up to 4400+ MT/s OC
- Wi-Fi 6E and Bluetooth 5.2
- EZ Debug LED and EZ Mounting
Who it's for
Fits AM4 builders who want current wireless standards and PCIe 4.0 without paying for RGB or extra gaming features, including those upgrading from an earlier Ryzen generation on the same socket. Not aimed at buyers set on AM5 or Intel platforms.
Pros and cons
- Wi-Fi 6E and Bluetooth 5.2 built in
- Supports four generations of AM4 Ryzen chips
- PCIe 4.0 slot and Gen4 M.2 for fast storage
- EZ Debug LED simplifies troubleshooting
- No RGB or premium VRM cooling for overclocking headroom
Performance notes
DDR4 memory is supported up to 4400+ MT/s when overclocked, and the single Lightning Gen4 x4 M.2 slot is the fast storage option here. EZ Debug LEDs are meant to flag boot problems, such as CPU, memory, GPU or boot device faults, during troubleshooting rather than add performance.
Specifications
| Brand | MSI |
|---|---|
| Model | B550M-P |
| Dimensions & fit | |
| Ram Memory Maximum Size | 128 GBlower than 55% of 23 motherboards |
| Item Dimensions L x W x H | 11.8 × 10.7 × 2.2 inches |
| Capacity & performance | |
| Memory Storage Capacity | 128 GB |
| Compatibility & installation | |
| Graphics Card Interface | PCI Express |
| Compatible Devices | Personal Computer |
| Included components | |
| Unit Count | 1 |
| Warranty & support | |
| System Bus Standard Supported | Serial ATA/600 |
| Warranty Description | 3 years |
| Other details | |
| Processor Socket | Socket AM4 |
| Chipset Type | AMD B550 |
| Chipset Family | AMD |
| RAM Memory Technology | DDR4 |
| CPU Model | Ryzen 3 |
| Memory Slots Available | 3 |
| Total PCIe Ports | 3 |
| Total Usb Ports | 6 |
| Total SATA Ports | 4 |
| Number of Ethernet Ports | 1 |
| Platform | Windows 11 |
| Number of Items | 1 |
| Number of Ports | 7 |
| Total Number of HDMI Ports | 1 |
| Mfr Part Number | B550MPWIFI6E |
Closest rivals on specs
ASUS TUF Gaming B850M-PLUS WiFi AM5 Motherboard- Memory Storage Capacity 128 vs 192 GB (-33%)
- Ram Memory Maximum Size 128 vs 192 GB (-33%)
Frequently asked questions
Which Ryzen chips work with the MSI PRO B550M-P WIFI6E?
Ryzen 5000 Series, 5000 G-Series, 4000 G-Series and 3000 Series AM4 processors.
Does this board have Wi-Fi built in?
Yes, it includes a Wi-Fi 6E module with Bluetooth 5.2.
What's the maximum DDR4 speed supported?
Up to 4400+ MT/s when overclocked.