I realized I was using the incorrect pins. GPIO2 on NanoPi M4 has pins 16,18, 22, and 24 for the USB 2.0 feature.

I am trying to make use of the USB 2.0 capability listed for GPIO2 with an external USB storage device. What type of connector cable is recommended? Is it simply a 4-pin cable to female USB connected to pins 1-4?

Thanks in advance.