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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

  • CPU Socket TypeLGA 1851
  • CPU TypeIntel Core Ultra Processors (Series 2)
  • ChipsetIntel B860
  • Number of Memory Slots2x288pin (DDR5)
  • Memory StandardUp to DDR5 9333+(OC)
  • Maximum Memory Supported128GB

Option B860I Lightning WiFi

Struck-through versions exist but are not stocked here.

  • 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.

Highlights

  • 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

Specifications

BrandASRock
ModelB860I Lightning WiFi
Part NumberB860I Lightning WiFi
CPU Socket TypeLGA 1851
CPU TypeIntel Core Ultra Processors (Series 2)
ChipsetIntel B860
Number of Memory Slots2x288pin (DDR5)
Memory StandardUp to DDR5 9333+(OC)
Maximum Memory Supported128GB
Channel SupportedDual Channel
Memory Performance ProfileIntel XMP 3.0
Memory FeatureSupports DDR5 non-ECC, un-buffered memory up to 9333+(OC)*
Supports Clocked Unbuffered DIMM (CUDIMM)
PCI Express 5.0 x16CPU:
- 1 x PCIe 5.0 x16 Slot (PCIE1), supports x16 mode*
Serial ATA (SATA)3 x SATA 6Gb/s
M.2CPU:
- 1 x Blazing M.2 Socket (M2_1, Key M), supports type 2280 PCIe Gen5x4 (128 Gb/s) mode*
Chipset:
- 1 x Hyper M.2 Socket (M2_2, Key M), supports type 2280 PCIe Gen4x4 (64 Gb/s) mode*
* Supports Intel Volume Management Device (VMD)
Supports NVMe SSD as boot disks
SATA RAIDSupports RAID 0, RAID 1 and RAID 5 for SATA storage devices
Audio ChipsetRealtek ALC1220
Audio Channels7.1 Channels
LAN ChipsetDragon RTL8125BG
Max LAN Speed2.5Gbps
Wireless LANWi-Fi 802.11 ax
BluetoothBluetooth 5.3
Back I/O 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 5V@3A (15W) charging
Onboard USB1 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)
Other Connectors1 x Thermistor Cable Header
2 x Addressable LED Headers*
1 x CPU Fan Connector (4-pin) (Smart Fan Speed Control)**
1 x Chassis Fan Connector (4-pin) (Smart Fan Speed Control)**
1 x AIO Pump Fan Connector (4-pin) (Smart Fan Speed Control)***
* Supports in total up to 5V/3A, 15W LED Strip
** CPU_FAN and CHA_FAN1 support the fan power up to 1A (12W).
*** AIO_PUMP supports the fan power up to 3A (36W).
AIO_PUMP can auto detect if 3-pin or 4-pin fan is in use.
BIOS Feature256Mb AMI UEFI Legal BIOS with GUI support
SoftwareSoftware
- ASRock Motherboard Utility (Phantom Gaming Tuning)
- ASRock Phantom Gaming LAN Software
- ASRock Polychrome SYNC
UEFI
- ASRock EZ Mode
- ASRock Full HD UEFI
- ASRock My Favorites in UEFI
- ASRock Auto Driver Installer
- ASRock Instant Flash
Windows 11Windows 11 64-bit
Form FactorMini ITX
Dimensions (W x L)6.7" x 6.7"
Power Pin1 x 24 pin ATX Power Connector
1 x 8 pin 12V Power Connector (Hi-Density Power Connector)
FeaturesSuperb Productivity
- PCIe Gen5 (Graphics, M.2)
- Dual Channel DDR5
- Thunderbolt 4 Type-C Port (40 Gb/s)
Rock-Solid Durability
- 10+1+1+1+1 Power Phase, 110A SPS for VCore with Enlarged Heatsink Armor
- Memory OC Shield
- Flexible Integrated I/O Shield
- 20K Long-lasting Black Caps (high quality and conductive polymer capacitors)
Ultrafast Gaming
- 2.5G LAN, 802.11axe Wi-Fi 6E Module
EZ Update
- BIOS Flashback Button
- ASRock Auto Driver Installer
EZ Troubleshooter
- ASRock Post Status Checker
Package Contents2 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
Shipping weight1.16 kg
Package size229 × 191 × 102 mm

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

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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