Fetch the details of Portable devices that are connected to

Question

I want to fetch the details of Portable devices that how many portable devices are connected to my pc.
I have already used the below mentioned code but still can't get any solution.

 static List<USBDeviceInfo> GetUSBDevices()

    {

      List<USBDeviceInfo> devices = new List<USBDeviceInfo>();

      ManagementObjectCollection collection;

      using (var searcher = new ManagementObjectSearcher("Select * From Win32_USBHub"))

        collection = searcher.Get();      

      foreach (var device in collection)

      {

          devices.Add(new USBDeviceInfo(

          (string)device.GetPropertyValue("DeviceID"),

          (string)device.GetPropertyValue("PNPDeviceID"),

          (string)device.GetPropertyValue("Description")

          ));

      }

      collection.Dispose();

      return devices;

        

    }