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MOTHERBOARD · VERIFIED EXACT MOTHERBOARD
ASUS
ROG STRIX B850-I GAMING WIFI — 90MB1K30-MVAAY0
The premium ITX reference complements rather than replaces the ASRock value option. Pay for its audio and I/O only when the compact build will use them.
Reference: Verified exact modelMPN: 90MB1K30-MVAAY0Socket / chipset: AM5 · AMD B850Form factor: Mini-ITX · 170 × 170 mmMemory: 2 × DDR5 DIMM · up to 128 GB · EXPO and AEMPPower design: 10+2+1 stages · per-stage amperage intentionally omitted because official regional sources conflict
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Lowest verified price$419.99Exact MPN/SKU · Newegg Canada · CADIn stock
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Last checkedCurrentOct 7, 2026, 5:42 p.m. UTC
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VERIFIED MANUFACTURER MOTHERBOARD SHEET
Exact-model platform, expansion and limits
Confirmed facts
- MPN: 90MB1K30-MVAAY0
- Socket / chipset: AM5 · AMD B850
- Form factor: Mini-ITX · 170 × 170 mm
- Memory: 2 × DDR5 DIMM · up to 128 GB · EXPO and AEMP
- Power design: 10+2+1 stages · per-stage amperage intentionally omitted because official regional sources conflict
- Expansion: PCIe 5.0 x16 with Ryzen 7000 / 9000 · CPU-dependent mode with Ryzen 8000
- Storage: 2 × M.2 · CPU-dependent PCIe modes · 2 × SATA
- Networking: Intel 2.5 GbE · Wi-Fi 7 · Bluetooth 5.4
- Front connectivity: Rear USB-C 20 Gbps and 10 Gbps · front USB-C 10 Gbps
- Audio: SupremeFX ALC4080 platform
- CPU support: Ryzen 7000 / 8000 / 9000 subject to the current support list and BIOS
Compatibility to confirm
Confirm 90MB1K30-MVAAY0 and B850-I. PCIe and dual-M.2 modes depend on the Ryzen CPU. Per-stage amperage remains unpublished because official regional pages conflict.
Regional ASUS pages disagree on per-stage amperage, so that figure should not decide this purchase. Check the CPU support list, connectors and cooling layout instead.
A value-focused system or any build that needs more than two SATA devices, four DIMMs or several add-in cards.
Official manufacturer sources · checked August 19, 2026Official source 1 →Official source 2 →
Other useful details
Regional ASUS pages disagree on per-stage amperage, so that figure should not decide this purchase. Check the CPU support list, connectors and cooling layout instead.
FAQ
Questions before buying this model
Who is the ASUS ROG STRIX B850-I GAMING WIFI — 90MB1K30-MVAAY0 best for?
A premium Mini-ITX AM5 build that will use two fast M.2 drives, stronger onboard audio, Wi-Fi 7 and dense rear I/O.
Who should compare another option?
A value-focused system or any build that needs more than two SATA devices, four DIMMs or several add-in cards.
What should you compare before choosing?
The premium ITX reference complements rather than replaces the ASRock value option. Pay for its audio and I/O only when the compact build will use them.
What must be verified before buying?
Confirm 90MB1K30-MVAAY0 and B850-I. PCIe and dual-M.2 modes depend on the Ryzen CPU. Per-stage amperage remains unpublished because official regional pages conflict.
A question about this product?
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