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ASRock AMD B850i Lightning WiFi 6E Socket AM5 Ryzen 9000/8000/7000 Series DDR5 8200+ (OC) MHz 128GB Mini ITX Motherboard M.2 SATA3 6.0 Gb/s PCIe 5.0 B850 BIOS Flashback

  • Based on 63 reviews
Condition: New
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Availability: In Stock.
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Arrives Tuesday, Jun 9
Order within 15 hours and 26 minutes
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Size: Mini ITX


Style: Lightning WiFi


Features

  • Mini-ITX Compact Design: 170x170mm form factor ideal for small form factor builds while supporting AMD Ryzen 9000/8000/7000 series processors
  • Premium Power Delivery: 10+1+1 phase power design with 110A Smart Power Stage (SPS) ensures stable performance in compact builds
  • High-Speed Memory Support: 2 DDR5 DIMM slots support dual-channel configurations and extreme overclocked speeds up to 8200+ (OC)
  • PCIe 5.0 Ready: Includes one PCIe 5.0 x16 slot for next-generation graphics cards, maximizing performance in limited space
  • Dual Ultra-Fast Storage: Features both Blazing M.2 (PCIe Gen5x4) and Hyper M.2 (PCIe Gen4x4) slots for maximum storage performance
  • Advanced Networking: Killer 2.5G LAN and WiFi 6E with Bluetooth provide premium wired and wireless connectivity
  • Flexible Display Options: HDMI and USB Type-C with DisplayPort Alt-mode support versatile monitor configurations
  • High-Speed USB Connectivity: Includes USB 3.2 Gen2 Type-C port (up to 40Gb/s with selected processors) and multiple USB 3.2 Gen2 Type-A ports
  • System Compatibility Note: This Mini-ITX form factor requires a compatible small form factor case; verify chassis and cooler clearance before purchase

Description

The ASRock B850I Lightning WiFi is a compact mini-ITX motherboard for AMD AM5 processors, featuring DDR5 support, PCIe 5.0, dual M.2 slots, and WiFi 6E. Ideal for small form factor builds, it delivers powerful performance, advanced connectivity, and efficient cooling for gaming, content creation, and multitasking. Perfect for enthusiasts and professionals alike.

Brand: ASRock


CPU Socket: Socket AM5


Compatible Devices: Personal Computer


RAM Memory Technology: DDR5


Compatible Processors: AMD Ryzen 9000/8000/7000 Series


Chipset Type: AMD B850


Memory Clock Speed: 8200 MHz


Platform: Windows 11


Model Name: B850I LIGHTNING WIFI


CPU Model: Ryzen 9


Processor Socket: Socket AM5


Compatible Devices: Personal Computer


RAM Memory Technology: DDR5


Compatible Processors: AMD Ryzen 9000/8000/7000 Series


Chipset Type: AMD B850


Memory Clock Speed: 8200 MHz


Platform: Windows 11


CPU Model: Ryzen 9


Memory Storage Capacity: 128 GB


Ram Memory Maximum Size: 128 GB


Main Power Connector Type: 24-Pin


Graphics Card Interface: Integrated, PCI Express 4.0


Memory Slots Available: 2


Number of Ports: 13


System Bus Standard Supported: SATA 3


Total SATA Ports: 2


Total Usb Ports: 13


Number of Ethernet Ports: 1


Total Number of HDMI Ports: 1


Total PCIe Ports: 1


Brand: ASRock


Model Name: B850I LIGHTNING WIFI


Model Number: B850I LIGHTNING WIFI


Manufacturer: ASRock


Global Trade Identification Number: 30


Warranty Description: 3 Years Manufacturer


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Jun 9

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Perfect
Size: Mini ITX Style: Lightning WiFi
Excellent Choice
Reviewed in the United States on March 1, 2026 by Victor Henriquez

  • It works.
Size: Mini ITX Style: Lightning WiFi
Small yet powerful. Happy with my product.
Reviewed in the United States on March 4, 2026 by Amazon Customer

  • The Asrock B850I Lightning died after less than 20 hours of use... Enough said.
Size: Mini ITX Style: Lightning WiFi
I wanted to give this mother card a decent review, but it died with very little usage. After a month of not being used, I went to turn on the PC and there was no life. I assumed it was a bad PSU, but the PSU works. The motherboard shows no signs of life and won't trigger the PSU on the 24pin connector. I tried two known working PSUs. Very frustrating for a system that was running very stable for the couple weeks I used it. Now I have to go out and purchase another mobo while I wait for this one to get sent back to Asrock USA for a warranty claim. How does a MoBo just die when it's not even being used??? Fingers crossed that it didn't damage any components... ... show more
Reviewed in the United States on November 10, 2025 by Bill

  • Fantastic budget-friendly alternative to ASUS: great build wuality
Size: Mini ITX Style: Lightning WiFi
It would be unfair to give this 3 or 4/5 just because mine got messed up and I had to RMA it the first time, it was my fault. This is a great board about equal in build quality to ASUS’ strix boards of which I’ve owned many. Asrock boards were cooking 9800x3ds left and right and still might be, but other brands are as well, just not as frequently. This is a great board and beats ASUS by about $100 ... show more
Reviewed in the United States on August 30, 2025 by Nick Barry

  • Good stuff no debug leds
Size: Mini ITX Style: Lightning WiFi
Build like a tank. but if you are stuck no debug leds. So you are on your own.
Reviewed in the United States on November 23, 2025 by Amazon Customer

  • Bios nightmare
Size: Mini ITX Style: Lightning WiFi
The motherboard really needs to update bios to be compatible to high end gpu. Downloading through usb stick is a nightmare for amateur pc builders. Thank goodness for AI assistance. In my opinion it should be just plug and play most people dont understand bios language. Maybe include a usb flash drive to update bios. Its only a year old MB but it can't handle the latest gpu doesnt make sense at all. ... show more
Reviewed in the United States on February 15, 2026 by Song Soo Park

  • Best budget AM5 ITX Motherboard
Size: Mini ITX Style: Lightning WiFi
Ive purchased about 3 of the Asrock b850i motherboard for ITX builds, and all ran fine with zero issues. I see other people have issues with them, but I personally have not had any. Be mindful tho, it may still fry 9800x3d cpu's like others have stated. Luck of the draw I guess.
Reviewed in the United States on January 10, 2026 by Pedro Najera

  • Muy buen precio, rendimiento excelente
Size: Mini ITX Style: Lightning WiFi
Excelente placa, se siente de muy buena calidad. La BIOS es muy fácil de navegar. Se le instaló un Ryzen 7 9700X con 32Gb RAM xpg blade. No tuvo ningún problema al reconocerlos y activar el Expo a 6000mt con CL 30. Se le instaló también 2 m.2: 1TB WD SN850X para el SO y 2TB Kingston Fury Renegade Se actualizo BIOS a la última versión. Todo funcionando impecable. ... show more
Reviewed in the United States on January 8, 2026 by Carlos R.

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