ASRock B850 Steel Legend WiFi
- Chipset:
- B850
- Socket:
- AM5
- Form Factor:
- ATX
- M.2 Slots:
- 4x M.2
- Network:
- WiFi 7
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Manufacturer: ASRock Last updated: September 11, 2026
ASRock B850 Steel Legend WiFi (AM5/AMD B850/ATX/14+2+1 Phase 80A Dr.MOS VRM/Four M.2 Slots/Wi-Fi 7) Review
The B850 Steel Legend WiFi extends ASRock's Steel Legend design to the B850 chipset, matching much of the X870 Steel Legend's feature set at a lower price point since it doesn't need to support the X870 chipset's extra connectivity.
Power delivery uses the same 14+2+1 phase design with 80A Dr.MOS stages found on the X870 Steel Legend WiFi, giving it identical VRM headroom at a lower overall board price. Four DDR5 DIMM slots support up to 256GB total capacity, with overclocking rated up to 8000+ MT/s. Expansion includes a PCIe 5.0 x16 slot and a PCIe 4.0 x16 slot at x4. Storage covers four M.2 slots: one PCIe 5.0 and three PCIe 4.0. A 2.5 Gigabit LAN controller handles wired networking, paired with an 802.11be Wi-Fi 7 module. Audio uses a Realtek ALC4082 7.1-channel codec with Nahimic audio. Against its sibling ASRock X870 Steel Legend WiFi in this batch, the B850 Steel Legend WiFi actually offers one more M.2 slot (four versus three) at a lower price, making it arguably the better value pick unless X870's extra chipset lanes matter to a specific build.
Power Delivery and VRM Design
Power delivery uses the same 14+2+1 phase design with 80A Dr.MOS stages found on the X870 Steel Legend WiFi, giving it identical VRM headroom at a lower overall board price.
Memory Support
Four DDR5 DIMM slots support up to 256GB total capacity, with overclocking rated up to 8000+ MT/s.
Expansion and Storage
Expansion includes a PCIe 5.0 x16 slot and a PCIe 4.0 x16 slot at x4. Storage covers four M.2 slots: one PCIe 5.0 and three PCIe 4.0.
Connectivity
A 2.5 Gigabit LAN controller handles wired networking, paired with an 802.11be Wi-Fi 7 module. Audio uses a Realtek ALC4082 7.1-channel codec with Nahimic audio.
Comparison to Sibling Products
Against its sibling ASRock X870 Steel Legend WiFi in this batch, the B850 Steel Legend WiFi actually offers one more M.2 slot (four versus three) at a lower price, making it arguably the better value pick unless X870's extra chipset lanes matter to a specific build.
Specifications
Platform and CPU compatibility
| Platform | AMD |
|---|---|
| Socket | AM5 |
| Socket | AMD Ryzen 9000 / 8000 / 7000 series |
| Chipset | B850 |
Platform
| Socket Type | AM5 |
|---|---|
| Form Factor | ATX |
Memory
| Memory Type | DDR5 |
|---|---|
| Memory Slots | 4 |
| Max Memory | 256 GB |
| Memory Type | 4x DDR5 DIMM, up to 256GB, up to 8000+ MT/s (OC) |
Expansion & Connectivity
| M.2 Slots | 4 |
|---|---|
| PCIe 5.0 Support | Yes |
| Wi-Fi Onboard | Yes |
Network and audio
| Audio Codec | Realtek ALC4082, Nahimic, 7.1-channel |
|---|
| Model | B850 Steel Legend WiFi |
|---|---|
| VRM | 14+2+1 phase, 80A Dr.MOS |
| Expansion | PCIe 5.0 x16 + PCIe 4.0 x16 (x4) |
| Connectivity | USB 3.2, Nahimic audio software |
| Networking | 2.5G LAN, Wi-Fi 7 |
| Special Features | 4x M.2 (1x Gen5, 3x Gen4) |
Expert Review
Reviewed by Burooj Alam. Rated by us, not by users.
Best for
- Builders who want four M.2 slots at a B-series price
- Mainstream AM5 builds with Steel Legend styling preference
Not for
- Enthusiasts who need X870-level chipset lanes
- Builds needing dual LAN
FAQs
What are the key specifications of the ASRock B850 Steel Legend WiFi (AM5/AMD B850/ATX/14+2+1 Phase 80A Dr.MOS VRM/Four M.2 Slots/Wi-Fi 7)?
The ASRock B850 Steel Legend WiFi (AM5/AMD B850/ATX/14+2+1 Phase 80A Dr.MOS VRM/Four M.2 Slots/Wi-Fi 7) is a motherboard from ASRock. Key specs: Socket AM5, Chipset B850, VRM 14+2+1 phase, 80A Dr.MOS, Memory 4x DDR5 DIMM, up to 256GB, up to 8000+ MT/s (OC), Expansion PCIe 5.0 x16 + PCIe 4.0 x16 (x4).
Will the ASRock B850 Steel Legend WiFi (AM5/AMD B850/ATX/14+2+1 Phase 80A Dr.MOS VRM/Four M.2 Slots/Wi-Fi 7) work with my current setup?
The ASRock B850 Steel Legend WiFi (AM5/AMD B850/ATX/14+2+1 Phase 80A Dr.MOS VRM/Four M.2 Slots/Wi-Fi 7) lists Socket is AM5. Check that against the hardware you already own before buying, since this is the field that most often decides whether a part fits.
Who is the ASRock B850 Steel Legend WiFi (AM5/AMD B850/ATX/14+2+1 Phase 80A Dr.MOS VRM/Four M.2 Slots/Wi-Fi 7) best suited to?
It suits builders who want four m.2 slots at a b-series price, mainstream am5 builds with steel legend styling preference.
What are the drawbacks of the ASRock B850 Steel Legend WiFi (AM5/AMD B850/ATX/14+2+1 Phase 80A Dr.MOS VRM/Four M.2 Slots/Wi-Fi 7)?
It is a poor fit for enthusiasts who need x870-level chipset lanes, builds needing dual lan.
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