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MOTHERBOARD · VERIFIED EXACT MOTHERBOARD
ASRock
B850I Lightning WiFi
A Mini-ITX option for a single-GPU build. Its limits are physical: two memory slots, one expansion slot and a compact layout that must fit the cooler, case and cable routing.
Reference: Verified exact modelMPN: B850I Lightning WiFiSocket / chipset: AM5 · AMD B850Form factor: Mini-ITX · 170 × 170 mmMemory: 2 × DDR5 DIMM · verify the current CPU and memory support listsPower design: 10+1+1 phase · 110 A SPS for Vcore
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Lowest verified price$229.99Exact MPN/SKU · Newegg Canada · CADIn stock
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Last checkedCurrentOct 6, 2026, 11:02 p.m. UTC
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VERIFIED MANUFACTURER MOTHERBOARD SHEET
Exact-model platform, expansion and limits
Confirmed facts
- MPN: B850I Lightning WiFi
- Socket / chipset: AM5 · AMD B850
- Form factor: Mini-ITX · 170 × 170 mm
- Memory: 2 × DDR5 DIMM · verify the current CPU and memory support lists
- Power design: 10+1+1 phase · 110 A SPS for Vcore
- Expansion: 1 × PCIe 5.0 x16
- Storage: 2 × M.2 · PCIe 5.0 x4 plus PCIe 4.0 x4
- Networking: Killer 2.5 GbE · Wi-Fi 6E · Bluetooth
- Front connectivity: Rear USB-C 10 Gbps with DisplayPort Alt Mode · front USB-C 5 Gbps
- Audio: Realtek ALC1220 · 7.1-channel
- CPU support: Ryzen 7000 / 8000 / 9000 subject to the current support list and BIOS
Compatibility to confirm
Confirm B850I Lightning WiFi, not B650I Lightning or another Phantom Gaming model. Check the current CPU and memory support lists and the exact cooler clearances before ordering.
A build that needs four DIMMs, several PCIe cards, many SATA devices or ATX-style header spacing.
Official manufacturer sources · checked August 19, 2026Official source 1 →Official source 2 →
Other useful details
The exact model, platform and retailer identity are tied to the same manufacturer record.
FAQ
Questions before buying this model
Who is the ASRock B850I Lightning WiFi best for?
A small-form-factor AM5 gaming or mixed-use PC with one graphics card, two NVMe drives and modern wired and wireless networking.
Who should compare another option?
A build that needs four DIMMs, several PCIe cards, many SATA devices or ATX-style header spacing.
What should you compare before choosing?
A Mini-ITX option for a single-GPU build. Its limits are physical: two memory slots, one expansion slot and a compact layout that must fit the cooler, case and cable routing.
What must be verified before buying?
Confirm B850I Lightning WiFi, not B650I Lightning or another Phantom Gaming model. Check the current CPU and memory support lists and the exact cooler clearances before ordering.
A question about this product?
GPUSTORES TECH ASSISTANT
Questions about the B850I Lightning WiFi
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