List USB devices

from http://csharphelper.com/blog/2017/08/list-usb-devices-in-c/

This program uses WMI (Windows Management Instrumentation) to query for USB devices. To use WMI, add a references to System.Management and add a using System.Management directive.

When it starts, this example uses the following code to list USB devices.

// Add a reference to System.Management.
using System.Management;
...
private void Form1_Load(object sender, EventArgs e)
{

            ManagementObjectSearcher device_searcher =
    new ManagementObjectSearcher("SELECT * FROM Win32_USBHub");
            foreach (ManagementObject usb_device in device_searcher.Get())
            {

                textBox1.Text +=
                    usb_device.Properties["DeviceID"].Value.ToString() + "  " +
                    usb_device.Properties["PNPDeviceID"].Value.ToString() + "  " +
                    usb_device.Properties["Description"].Value.ToString() + "  " +
                    Environment.NewLine;

            }
}