Fibocom Wireless - #LTE was originally designed to solve the requirements for a fast and secure connection for connected devices, but what's the difference between LTE Cat 1 and LTE Cat 4?
LTE UE Category & Class Definitions - CableFree
Amazon.com: D-Link 4G LTE (Cat 4) to Gigabit Ethernet Modem/Bridge, Best for M2M Applications, Supports OpenVPN, Optional Enterprise Service Platform, Works on Verizon or AT&T (DWM-311-B1) : Electronics
LTE Cat 1 vs. Cat M1: Choose the Right IoT Modem for the Job - Airgain