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Compact Mini-ITX motherboard, black PCB, silver heatsinks, LGA1851 socket, two DDR5 slots, PCIe 5.0 x16, M.2 heatshields, rear I/O

ASRock

ASRock B860I Lightning WiFi Intel motherboard

SKU CH-822E-7QBEY MPN B860I Lightning WiFi

Mini-ITX board for Intel Core Ultra Series 2 with dual DDR5 slots up to 9333 OC, one PCIe 5.0 x16, two M.2 sockets, 2.5 Gb LAN and 7.1 audio

  • ProcessorIntel Core Ultra Processors (Series 2)
  • ChipsetIntel B860
  • Form factorMini ITX
  • CPU socketLGA 1851
  • Memory slot count2 × 288pin (DDR5)
  • Supported memoryUp to DDR5 9333+(OC)

Model B860I Lightning WiFi

  • Supports Intel Core Ultra Series 2 processors with LGA 1851 socket
  • 10+1+1+1+1 power phases deliver 110A SPS for stable VCore+GT+SA
  • Dual-channel DDR5 up to 9333+ OC via Intel XMP 3.0 with 128GB maximum capacity
  • PCIe 5.0 x16 slot plus Blazing M.2 Gen5x4 and Hyper M.2 Gen4x4 for high-speed storage
  • Realtek ALC1220 7.1-channel audio with Nahimic and 2.5Gbps Dragon RTL8125BG LAN

Compact Intel B860 platform

This Mini ITX board uses the Intel B860 chipset with an LGA 1851 socket for Intel Core Ultra Series 2 processors. It provides two DDR5 slots supporting up to 128 GB and speeds up to 9333+(OC) via Intel XMP 3.0. A 10+1+1+1+1 phase design rated at 110 A handles VCore, GT and SA power delivery in a small form factor.

Gamers and small-form-factor builders

The single PCIe 5.0 x16 slot fits one full-size graphics card, while two M.2 sockets (one Gen5x4, one Gen4x4) and three SATA 6Gb/s ports cover fast storage. Builders needing multiple GPUs, legacy PCI slots or more than two memory modules should choose a larger ATX or micro-ATX board instead.

Straightforward Mini ITX install

Mount the board using standard Mini ITX standoffs, connect the 24-pin and 8-pin CPU power headers, then seat up to two DDR5 modules and one graphics card. The dense layout leaves little room around the CPU socket, so install the cooler before placing the board in the case. Verify M.2 screw positions for 2280 drives and check case clearance for the Thunderbolt 4 Type-C and HDMI ports on the rear I/O.

How it compares

Measured against everything we stock in Motherboards for Intel CPUs, at today’s prices. Recalculated every night.

Price $167.99
Pricier than about 76% of the 2,965 comparable items (median $97.99).

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Specifications

Product
Brand nameASRock
Model nameB860I Lightning WiFi
Part numberB860I Lightning WiFi
Processor
ProcessorIntel Core Ultra Processors (Series 2)
CPU socketLGA 1851
ChipsetIntel B860
Memory
Memory slot count2 × 288pin (DDR5)
Supported memoryUp to DDR5 9333+(OC)
Max supported RAM128 GB
Memory channelsDual Channel
Memory profilesIntel XMP 3.0
Storage
SATA ports3 x SATA 6Gb/s
M.2 slotsCPU:
- 1 x Blazing M.2 Socket (M2_1, Key M), supports type 2280 PCIe Gen5 × 4 (128 Gb/s) mode*
Chipset:
- 1 x Hyper M.2 Socket (M2_2, Key M), supports type 2280 PCIe Gen4 × 4 (64 Gb/s) mode*
* Supports Intel Volume Management Device (VMD)
Supports NVMe SSD as boot disks
SATA and RAID supportSupports RAID 0, RAID 1 and RAID 5 for SATA storage devices
Audio & video
Audio chipRealtek ALC1220
Sound channels7.1 Channels
Connectivity
Ethernet controllerDragon RTL8125BG
Maximum network speed2.5 Gbit/s
Wi-Fi standardWi-Fi 802.11 ax
Bluetooth support5.3
Ports & slots
PCIe 5.0 x16 slotsCPU:
- 1 x PCIe 5.0 x16 Slot (PCIE1), supports x16 mode*
Rear panel ports2 x Antenna Ports
1 x HDMI Port
1 x Optical SPDIF Out Port
1 x Thunderbolt 4 Type-C Port (40 Gb/s for USB4 protocol; 40Gb/s for Thunderbolt protocol)*
2 x USB 3.2 Gen2 Type-A Ports
4 x USB 3.2 Gen1 Ports
1 x USB 2.0 Port
1 x RJ-45 LAN Port
1 x BIOS Flashback Button
1 x Line Out Jack (Gold Audio Jack)
1 x Microphone Input Jack (Gold Audio Jack)
* Supports USB PD 3.0 up to 5 V@3A (15 W) charging
Onboard USB headers1 x USB 2.0 Header (Supports 2 USB 2.0 ports)
1 x USB 3.2 Gen1 Headers (Supports 2 USB 3.2 Gen1 ports)
1 x Front Panel Type C USB 3.2 Gen2 Header (10 Gb/s)
Power
Power connectors1 × 24 pin ATX Power Connector
1 × 8 pin 12 V Power Connector (Hi-Density Power Connector)
Size & build
Form factorMini ITX
Width and length6.7 in × 6.7 in
Shipping weight1.16 kg
Package size229 × 191 × 102 mm
Compatibility
Windows 11 support64-bit
In the box
In the box2 x SATA Data Cables
2 x ASRock WiFi 2.4/5/6 GHz Antennas
1 x Thermistor Cable
2 x Screws for M.2 Sockets
More details
BIOS256Mb AMI UEFI Legal BIOS with GUI support

Other versions of this model

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Questions about this item

Will this board fit in a Mini-ITX case and what CPU cooler clearance do I need?

The board uses the Mini-ITX form factor so it fits any Mini-ITX case. Cooler clearance depends on the case not the motherboard so check your case specifications.

Which memory kits are guaranteed to run at the advertised 9333 MT/s?

Only DDR5 CUDIMM kits rated for 9333 MT/s or higher with Intel XMP 3.0 profiles are validated. Standard DDR5 DIMMs may not reach that speed.

Can I run two NVMe drives at full PCIe 5.0 and 4.0 speeds simultaneously?

Yes. The CPU-linked M.2 slot runs PCIe 5.0 x4 and the chipset-linked slot runs PCIe 4.0 x4 so both operate at their rated bandwidth together.

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