MSI PRO B850-S WIFI6E AM5 ATX Motherboard
- Socket AM5, AMD B850 chipset
- Ryzen 9000, 8000 and 7000 desktop processors
- DDR5 memory, up to 256 GB, 8200 MT/s OC
- PCIe 4.0 x16 graphics slot, M.2 Gen5 storage
- Wi-Fi 6E and Bluetooth 5.3, Realtek 2.5G LAN
- USB 10Gbps Type-C, 7.1 HD audio
- Dual 8-pin CPU power, 12 Duet Rail VRM
- 3 year warranty, ATX
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
An ATX board for current AMD processors with DDR5 memory, fast storage support and wireless networking. The listing names a PCIe generation of four for graphics, so it targets mainstream builds.
As an Amazon Associate I earn from qualifying purchases. ProductDome earns a commission when you buy through links on this page.
ASIN: B0FR6948FRModel: PRO B850-S WIFI6ECategory: Motherboards
Styles Available
Need a different one? Pick on Amazon →
Overview
A voltage regulator module with dual eight pin processor power connectors feeds the AMD socket on this ATX board, and passive heatsinks cool the power parts. fast Gen5 storage, Wi-Fi and wired LAN come built in.
Builders on the current AMD platform get a business styled board with modern storage and networking at a mainstream level. Memory slots are listed as two, which is fewer than many ATX boards. Details on ports and slot counts are brief in the listing.
Who it's for
A gamer or home office builder pairing a current Ryzen processor with a single graphics card. The ATX size fits common mid tower cases. Overclockers needing many slots and workstation buyers should look at higher tier boards.
Pros and cons
- Supports Ryzen 9000, 8000 and 7000
- DDR5 memory support
- Wi-Fi 6E and 2.5G LAN
- Dual CPU power connectors
- Only two memory slots listed
- Graphics slot is PCIe 4.0
- Port count details sparse
- Memory overclock needs matched sticks
Performance notes
The voltage regulator module smooths power to the processor, which helps it hold boost clocks under load, and the passive heatsinks spread heat. DDR5 speed above standard counts as overclocking and depends on the sticks and processor. A fourth generation graphics slot is enough bandwidth for most current graphics cards.
Specifications
| Brand | MSI |
|---|---|
| Model | PRO B850-S WIFI6E |
| Dimensions & fit | |
| Item weight | 3.2 pounds |
| Item Dimensions L x W x H | 10.7 x 13.6 x 2.9 inches (L x W x H) |
| Capacity & performance | |
| Memory Storage Capacity | 256 GB |
| Memory Clock Speed | 8200 MT/s (OC) |
| Compatibility & installation | |
| Graphics Card Interface | PCI Express 4.0 x16 |
| Compatible Processors | AMD Ryzen 9000, 8000, 7000 series desktop |
| Networking | Wi-Fi 6E, Bluetooth 5.3, Realtek 2.5G LAN |
| Warranty & support | |
| Warranty Description | 3 year |
| Other details | |
| Processor Socket | Socket AM5 |
| Chipset Type | AMD B850 |
| RAM Memory Technology | DDR5 |
| Memory Slots Available | 2 |
| Total Usb Ports | USB 10Gbps Type-C |
| Platform | Windows 11 |
| Audio | 7.1 HD audio |
| Storage | M.2 Gen5 with M.2 Shield Frozr |
Closest rivals on specs
ASUS ROG Strix B850-G Gaming WiFi AM5 Motherboard- Item Weight 3.2 vs 2.9 pounds (+10%)
ASUS TUF Gaming B850M-PLUS WiFi AM5 Motherboard- Item Weight 3.2 vs 2.6 pounds (+23%)
- Memory Storage Capacity 256 vs 192 GB (+33%)
GIGABYTE B550 Eagle WIFI6 AM4 ATX Motherboard- Item Weight 3.2 vs 2.76 pounds (+16%)
- Memory Storage Capacity 256 vs 128 GB (+100%)
Frequently asked questions
What size is the MSI PRO B850-S WIFI6E?
The title calls it an ATX board, and the listing gives 10.7 inches long, 13.6 inches wide and 2.9 inches high.
Which processors fit the MSI PRO B850-S WIFI6E?
The listing supports AMD Ryzen 9000, 8000 and 7000 series desktop processors on Socket AM5.
Does the MSI PRO B850-S WIFI6E support PCIe 5.0 graphics?
No. The graphics slot is listed as PCIe 4.0 x16, while the storage is M.2 Gen5.
Does the MSI PRO B850-S WIFI6E have Wi-Fi?
Yes. It lists Wi-Fi 6E and Bluetooth 5.3.