The IDG500-0T002 is a 4G LTE cellular modem with an Ethernet connection. It is suitable for internet failover and other applications where internet service is not readily available. The IDG500-0T002 can be coupled with the 4G LTE service options to provide a complete cellular solution. This unit is specific to Verizon. When an Verizon 4G LTE service option is purchased concurrently, Protectli will install the SIM, configure and test the unit before shipping.