T7X has WiFi connectivity to allow the use of MatterControl cloud features like Cloud Library and Cloud Sync. However, these are not required to operate the device. Your T7X will function out of the box and control your 3D printer without a WiFi connection. The unit has an SD card reader for offline loading of digital designs to ensure maximum functionality even without an internet connection. Though not necessary, we do highly recommend keeping your T7X connected to WiFi to continue receiving the latest updates from our software development team, and to take advantage of the internet connected features of the device.