# SerialPort Object * `portId` string - Unique identifier for the port. * `portName` string - Name of the port. * `displayName` string (optional) - A string suitable for display to the user for describing this device. * `vendorId` string (optional) - The USB vendor ID. * `productId` string (optional) - The USB product ID. * `serialNumber` string (optional) - The USB device serial number. * `usbDriverName` string (optional) _macOS_ - Represents a single serial port on macOS can be enumerated by multiple drivers. * `deviceInstanceId` string (optional) _Windows_ - A stable identifier on Windows that can be used for device permissions.