EM7455 not recognized in my dell latitude rugged 5420 Laptop

IoT Modules
2

see if this helps:

You might also install the USB driver:
https://source.sierrawireless.com/resources/airprime/software/airprime-em_mc-series-windows-drivers-qmi-build-5087/#sthash.a9FQU0VX.dpbs