ASRock
ASRock B650 Steel Legend WiFi 6E AMD Socket AM5 Ryzen 9000 8000 and 7000 Series SATA3 M.2 DDR5 7200+(OC) 256GB SATA3 6.0 Gb/s ATX Motherboard BIOS Flashback
Bottom line: The ASRock B650 Steel Legend WiFi 6E AMD Socket AM5 Ryzen 9000 8000 and ($159.99 on Amazon as of 2026-10-06): PCIe 5.0 x16 slot plus a Gen5x4 M.2 for next-gen GPUs and SSDs; main trade-off: second x16 slot is only PCIe 3.0, limiting add-in card bandwidth.
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*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
Pros & Cons
Pros
- ✓ PCIe 5.0 x16 slot plus a Gen5x4 M.2 for next-gen GPUs and SSDs
- ✓ Three M.2 sockets total: 1 Gen5x4 Blazing plus 2 Gen4x4 Hyper
- ✓ 14+2+1 power phase with 80A Dr.MOS handles Ryzen 9 chips
- ✓ BIOS Flashback updates the board with no CPU installed
Cons
- ✗ Second x16 slot is only PCIe 3.0, limiting add-in card bandwidth
- ✗ Just 4 SATA3 ports, tight for multi-drive retro or NAS builds
- ✗ One PCIe 4.0 x1 slot is the only spare expansion after the GPU
- ✗ DDR5 7200+ speeds require overclocking, not guaranteed at stock
Manufacturer description
***Not compatible with all built-in computers or systems Supports AMD Socket AM5 Ryzen 9000, 8000 and 7000 Series Processors 14+2+1 Power Phase, 80A Dr.MOS for Vcore
SpecPicks Verdict
SpecPicks scored ASRock B650 Steel Legend WiFi 6E AMD Socket AM5 Ryzen 9000 8000 and… using a rating × review-volume × price-fit model applied to published specs and reviews across the motherboards category. ASRock's motherboards lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for motherboards of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Key Features
- ***Not compatible with all built-in computers or systems
- Supports AMD Socket AM5 Ryzen 9000, 8000 and 7000 Series Processors
- 14+2+1 Power Phase, 80A Dr.MOS for Vcore
- 4 x DDR5 DIMMs Supports Dual Channel, up to 7200+ (OC)
- 1 PCIe 5.0 x16, 1 PCIe 3.0 x16, 1 PCIe 4.0 x1
- Graphics Output Options: 1 HDMI, 1 DisplayPort Realtek ALC4082 7.1 CH HD Audio Codec, Nahimic Audio
Full Specifications
| Size | ATX |
|---|---|
| Brand | ASRock |
| Color | White |
| Model | 90-MXBN90-A0UAYZ |
| Warranty | 90 days |
| UnitCount | 1 |
| ReleaseDate | 2024-02-01T00:00:01Z |
| Manufacturer | ASRock |
| ItemPartNumber | 90-MXBN90-A0UAYZ |
Ready to buy?
ASRock B650 Steel Legend WiFi 6E AMD Socket AM5 Ryzen 9000 8000 and 7000 Series SATA3 M.2 DDR5 7200+(OC) 256GB SATA3 6.0 Gb/s ATX Motherboard BIOS Flashback is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
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