ASROCK B850I Lightning WiFi
ASROCK B850I Lightning WiFi
The ASRock B850I Lightning WiFi motherboard in Mini-ITX format is designed for powerful compact builds using AMD Ryzen 9000, 8000, and 7000 series processors. With its AMD B850 chipset and 8-layer PCB, it provides a stable platform for both gaming and demanding work. The board is equipped with modern technologies to boost hardware performance, including support for the latest PCIe 5.0 standards and high-speed memory, all while maintaining a small form factor for installation in space-constrained cases.
AMD B850
Chipset
AMD AM5
Socket
mITX (Mini ITX)
Form factor
DDR5
Memory type
2×
Number of RAM slotsKey features of the ASROCK B850I Lightning WiFi motherboard
- Support for AMD Ryzen 9000, 8000, and 7000 series processors for the AM5 socket
- Robust 10+1+1 phase power design with 110A SPS Dr.MOS technology for stable performance
- Two DDR5 memory slots with speeds up to 8200+ MHz and support for EXPO/XMP profiles
- PCIe 5.0 x16 interface with a reinforced steel slot and a Blazing M.2 PCIe Gen5x4 connector
- Network connectivity including Killer 2.5Gbps LAN and a Wi-Fi 6E wireless module with Bluetooth
- 7.1-channel HD audio with a Realtek ALC1220 codec and a USB-C port with DisplayPort Alt Mode support
Power and system support
To ensure processor stability, the board uses a robust 10+1+1 phase power design with 110A Smart Power Stage technology, cooled by an optimised aluminium heatsink. The two DIMM memory slots support DDR5 modules with a maximum capacity of 128GB and allow overclocking up to 8200MHz. The board supports AMD EXPO and Intel XMP profiles for easy memory setup. Graphics cards use a reinforced steel PCIe 5.0 x16 slot, which ensures signal integrity even with heavy cards. For storage, there is a Blazing M.2 (PCIe Gen5x4) slot with a transfer speed of up to 128Gb/s and a Hyper M.2 (PCIe Gen4x4) slot.
Connectivity and gaming features
Professional-level network communication is handled by a Killer 2.5Gbps LAN controller along with a Wi-Fi 6E wireless module, which supports the 6GHz band and Bluetooth 5.2. The rear I/O panel offers dedicated Lightning Gaming Ports, designed for connecting a mouse and keyboard with minimal latency and signal jitter. Audio output is provided by a 7.1-channel Realtek ALC1220 codec enhanced with Nahimic Audio technology for detailed surround sound. The connector selection includes a versatile USB-C 3.2 Gen2 port with video transfer support (DP-Alt Mode) and high-speed USB-A ports. The lighting system can be synchronised using ASRock Polychrome SYNC.
Port selection
Storage
- SATA III count: 2
- M.2 count: 2
- M.2 Slot 1 - M.2 PCI-E NVMe Gen5
- M.2 Slot 2 - M.2 PCI-E NVMe Gen4
- Features: RAID 0, RAID 1, RAID 10
USB ports
- Internal USB 2.0: 4
- Internal USB 3.2 Gen 1: 4
- Internal USB-C 3.2 Gen 2x2: 1
- Rear USB 3.2 Gen 1: 1
- Rear USB-C 3.2 Gen 2: 1
Graphics
- HDMI 2.1
- Graphics outputs: HDMI, Thunderbolt
Audio
- Channel count: 7.1
- Rear connectors: 2× 3.5mm, Optical S/PDIF
- Internal connectors: S/PDIF
Other
- Rear: BIOS switch, CMOS Clear, Wi-Fi antenna
- Power: 24pin, 2× 8pin
- Cooling: PWM FAN count (4-pin) - 6 , Water pump - 4-pin
- Internal: Chassis intrusion sensor, RGB LED (4-pin), Temperature sensors
Choosing a motherboard
When choosing a motherboard (also known as a mainboard), it's important to pay close attention to the socket type, form factor, and chipset. These are the most crucial parameters, ensuring the board is compatible with the processor, expansion cards, and other components. The specific socket determines which processor you can choose, while the other connectors will dictate which additional components you need for your future computer.Specifications
Format & functions
Memory
Advanced parameters
Connectors
Compatibility
Colour
This product is not an independently functional unit and may require professional installation.
Specifications can be changed without notice. Images are for illustrative purposes only.
