Device Unknown is a line-style Icon from Rounded Line - Streamline Material set.

The Device Unknown icon shows a rounded rectangular device outline with a question mark beside it. Drawn in the rounded line style on a 24px grid, giving the symbol a clear, approachable UI presence. Use it for unidentified hardware, device setup screens, connection errors, support flows, and troubleshooting interfaces. It belongs to Rounded Line - Streamline Material set in the Streamline Material family.