MSI B850 Gaming Plus WiFi

The B850 Gaming Plus WiFi is an enthusiast AM5 ATX board with DDR5, PCIe 5.0 x16, a Gen5 M.2 among three M.2 slots, WiFi 7 and 5G LAN, and its 81 makes it the standout board in this group as the cheapest full-feature B850 from a major brand. It's a future-ready pick for AM5 builders wanting next-gen connectivity. Audio-focused builders are the exception, since it ships with the entry ALC897 codec.
Scores
BreakdownHideOverall75±6Caliber-forward blend — tier caliber + within-tier price rank 30%, value 25%, confidence 20%, compatibility 15%, upgrade path 10% — renormalized over applicable dimensions.
Scores
BreakdownHideCaliber-forward blend — tier caliber + within-tier price rank 30%, value 25%, confidence 20%, compatibility 15%, upgrade path 10% — renormalized over applicable dimensions.
The ± band on the overall score reflects sourcing confidence — wider when fewer specs are verified.
How each score is computed: our scoring methodology.
Specifications
| Spec | Value | Verification |
|---|---|---|
| socket | AM5Sourced | Sourced |
| chipset | B850Sourced | Sourced |
| form factor | ATXSourced | Sourced |
| RAM generation | DDR5Sourced | Sourced |
| m2 slots | 3Sourced | Sourced |
5/5 detail specs sourced. Amber rows are flagged for verification — we show them as reported, not confirmed.
Verdict
Best for
- Cheapest full-feature B850 ATX from a major brand: PCIe 5.0 x16, Gen5 M.2, WiFi 7, 5G LAN
Who should skip this
- Audio-focused builds (entry ALC897 codec)
Where to buy
List price $170
Prices are a guide and can change — confirm the current price on the retailer's site before buying.
Prices last checked Jun 16, 2026 — retailer prices change often, so click through for the current price.
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Ecosystem
Standards
Form factors & standards — interchangeable across compatible builds, not a platform lock-in.
Compatibility
Built around AMD AM5, ATX, DDR5, PCIe 5.0. Make sure the rest of your build uses the same platform before you buy — mismatched sockets, mounts or standards are the most common return reason. Check it in the builder →
Upgrade path
Outgrow it and the ASUS TUF Gaming B850 BTF WiFi (rear-connect) is the natural next step up in motherboards. See it →