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Deal.ai › ASRock › Motherboards
Asrock
Asrock Phantom Gaming B850I Lightning WiFi

Asrock Phantom Gaming B850I Lightning WiFi

Best price now

$203.99at NeweggChecked 8 h ago

Compared across 2 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. Price via Klarna.

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Price facts

  • Lowest price today: $203.99 at Newegg (checked Nov 10, 2026).
  • Checked at 2 stores.

Our take on the Asrock Phantom Gaming B850I Lightning WiFi

The ASRock Phantom Gaming B850I Lightning WiFi is a Mini-ITX AM5 motherboard built on AMD's B850 chipset. It packs PCIe 5.0 for the graphics card and an M.2 slot, Wi-Fi 6E, Bluetooth 5.2, 2.5Gb-class LAN and a single USB-C port into a board small enough for compact builds. Two DDR5 slots take up to 128 GB, and the layout suits small-form-factor gaming or living-room PCs. Against other ITX AM5 boards it stands out for the PCIe 5.0 slot and strong networking, while its two SATA ports and three fan headers are leaner than full-size rivals.

Best forSmall-form-factor gaming buildsCompact AM5 living-room PCsBuilders who want PCIe 5.0 in ITXWi-Fi 6E and wired LAN users
Pros
  • PCIe 5.0 x16 slot for current graphics cards
  • Wi-Fi 6E and Bluetooth 5.2 built in
  • Two DDR5 slots support up to 128 GB
  • M.2 slot accepts 2280 and 2230 drives
  • Optical S/PDIF and USB-C on the rear panel
  • Passive chipset cooling keeps noise down
Cons
  • Only two SATA ports for storage
  • Three 4-pin fan headers limit cooling setups
  • Single USB-C port on the rear I/O
  • One 8-pin EPS power connector, no second
  • ITX layout leaves little room around the CPU socket

Asrock Phantom Gaming B850I Lightning WiFi prices at every store

  • NeweggNew

    In stock

    $203.99Free shippingChecked 8 h ago
    Visit Newegg
  • Best BuyNew

    In stock

    $250.10Free shippingChecked 8 h ago
    Visit Best Buy

Store links may earn us a commission. Some prices via Klarna.

Asrock Phantom Gaming B850I Lightning WiFi price history

Lowest price we've seen: $203.99 on Nov 10 at Newegg. Tracked across 2 stores since Nov 10.

What reviewers say

Owners of ASRock's ITX AM5 boards generally praise the compact layout, networking and stable memory support, while noting the limited fan and SATA connections as the main trade-offs of the small form factor.

What people mention
  • Form factorPraisedOwners like how much connectivity ASRock fits into the Mini-ITX footprint.
  • NetworkingPraisedWi-Fi 6E and the wired LAN port are reported as fast and reliable.
  • Fan headersCriticisedThree 4-pin headers are seen as few for builds with multiple case fans or an AIO.
  • StorageMixedThe M.2 slot is welcome, but two SATA ports limit 2.5-inch and 3.5-inch drive expansion.
  • MemoryPraisedTwo DDR5 slots are said to handle high-capacity kits without stability trouble.

Specifications

Connections
Optical S/PDIF, USB-C, HDMI, USB-A, RJ45 (LAN)Source
Memory Type
DDR5Source
Integrated Processor
NoSource
Number of 24-pin ATX (pcs)
1Source

Questions and answers

Does this board support the latest AMD processors?
Yes. It uses the AM5 socket and AMD B850 chipset, so it takes current Ryzen 7000, 8000 and 9000 series desktop CPUs.
How many M.2 drives can I install?
There is one M.2 slot that accepts both 2280 and 2230 drives, so plan on a single NVMe SSD plus SATA drives.
Is Wi-Fi included?
Yes. Wi-Fi 6E and Bluetooth 5.2 are built in, along with a wired LAN port.
Will a large graphics card fit?
The board has one PCIe 5.0 x16 slot. Clearance depends on your case, so check the card length and thickness against the case specs.
What memory should I pair with it?
Use DDR5 DIMMs in the two slots. Up to 128 GB is supported, and a two-stick kit is the simplest way to fill both slots.
Does it have USB-C?
Yes, one USB-C port is on the rear panel, alongside HDMI 2.1, USB-A, optical S/PDIF and the LAN port.
Where is the Asrock Phantom Gaming B850I Lightning WiFi cheapest?
At Newegg, for $203.99, as of our latest check.
Where can I buy the Asrock Phantom Gaming B850I Lightning WiFi?
2 stores we checked sell it, including Newegg, Best Buy.

Stores we've priced the Asrock Phantom Gaming B850I Lightning WiFi at

  • Best Buy deals and prices
  • Newegg deals and prices

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HDMI Version
2.1Source
M.2 Key Type
M Key, E KeySource
Number of PCIe x16 (pcs)
1Source
RAID Controller
YesSource
Type of RAID
RAID 10, RAID 0, RAID 1Source
Socket AMD
Socket AM5Source
Cooling
PassiveSource
Memory Size (max)
128 GBSource
SATA Version
SATA III (6.0 Gbit/s)Source
PCIe Version
5.0Source
Bluetooth Version
5.2Source
Number of SATA (pcs)
2Source
No. of RJ45 (LAN)
1Source
Wi-Fi Standard
Wi-Fi 6E (802.11ax)Source
No. of USB-C (pcs)
1Source
Bluetooth
YesSource
M.2 Form Factor
2280, 2230Source
Processor
AMDSource
Chipset
AMD B850Source
Memory Slots
2Source