"Double Modems" is a package combining FPM-10MC PLC Modem and FPM-10MD PLC Modem, and is specially designed for users with existing broadband internet access, utilizing power line to link up the networks in the house. FPM-10MD PLC Modem is used as a bridge between WAN and PLC network, and then people can easily surf on the internet with FPM-10MC PLC modem plugged into any electric outlet in the house.