Read the adapter from output to input.

Two matching connector ends can still carry the wrong signal or work in only one direction.

Signal direction

Passive is not a synonym for reversible

DP++ can let a DisplayPort source emit a compatible HDMI/DVI signal through a simple one-way adapter. The reverse direction generally requires a powered active converter. USB-A video is a driver-based USB graphics category.

Check HDR, VRR, HDCP, audio, and DSC · Read the adapter guide