The WLAN Dongle is an option for the VFI ICT/ ICR IoT series to be able to connect to the internet. If the IoT UPS is not able to connect to the internet through an Ethernet Cable, the WLAN Dongle could be a viable solution. The PowerWalker VFI ICT/ ICR IoT series is the next generation UPS, offering an intuitive App for remote monitoring via the cloud. This accesory is solely for this series.