The ASRock B850I Lightning WiFi is a compact Mini-ITX motherboard for a desktop PC built around an AMD Ryzen processor. Its small form factor suits space-conscious gaming builds and other compact systems, while the AM5 socket supports Ryzen 7000, 8000 and 9000 Series processors.

Despite its 170 mm square footprint, the board provides a PCIe 5.0 x16 slot, two M.2 sockets and two SATA 6 Gb/s connections for storage and expansion. Two DDR5 DIMM slots support dual-channel memory, with speeds up to 8200+ (OC) and a maximum capacity of 128GB. Built-in Wi-Fi 6E, Bluetooth 5.2 and 2.5 Gigabit Ethernet offer wired and wireless networking options without requiring separate network cards.

Key features

• AM5 socket supports AMD Ryzen 9000, 8000 and 7000 Series desktop processors.
• Two DDR5 DIMM slots provide dual-channel memory support, with XMP and EXPO profiles.
• One PCIe 5.0 x16 slot supports a graphics card.
• Two M.2 sockets support PCIe Gen5 x4 and Gen4 x4 storage.
• Two SATA3 ports provide connections for additional storage.
• Wi-Fi 6E and Bluetooth 5.2 support wireless networking and peripherals.
• Killer 2.5 Gigabit LAN provides a wired network connection.
• BIOS Flashback enables a BIOS update using a USB drive and the board's Flashback button.

Compatibility

This board uses the AMD AM5 socket and DDR5 memory; processor and memory support should be checked against the system build requirements. Integrated graphics support depends on the installed CPU. Wi-Fi 6E operation on the 6GHz band requires a compatible router and depends on regional availability. Good to know: the box contents list the motherboard, two SATA data cables, two Wi-Fi antennas, two M.2 screws and a thermistor cable; they do not list a processor or memory.

In the box

• ASRock B850I Lightning WiFi
• 2 x SATA data cables
• 2 x ASRock WiFi 2.4/5/6 GHz antennas
• 2 x screws for M.2 sockets
• 1 x thermistor cable

Specifications

For a compact Ryzen system, the B850I Lightning WiFi combines modern expansion and storage options with built-in wireless networking in a Mini-ITX layout.