An external antenna can be connected instead of the internal. The WLAN module has a U.FL connector - which is connected via a short cable with the internal antenna or with an external antenna connected via this cable ("pigtail").
The reach can be improved by an external antenna. Exspecially for Avisaro WLAN device placed in a metal rack an external antenna also is necessary.
The image to the right shows the cube equipped with external antenna.
Avisaro WLAN products have an internal antenna. This antenna is connected via a short coax cables to the WLAN module. The cable is included and must not be ordered separately.