ThinkPad Fibocom FM350-GL 5G Sub-6 GHz M.2 WWAN Module for X1 Carbon Gen 11 is a wireless communication module with receive diversity. It helps provide data connectivity and network with PCIe Gen2 M.2 interface. The 5G Sub-6 GHz WWAN module enhances the network reliability and availability of your ThinkPad, and provides a great cellular solution for travelers to sustain mobility while using PC devices.