The TP-Link ADSL2+ Modem Router (TD-8840T) is a 2-in-1 device that combines the functions of a DSL modem and 4-port 10/100 Ethernet router. It supports the latest ADSL2/2+ standards to provide higher performance (up to 24Mbps downstream) and longer reach from your Internet Service Provider?s (ISP) Digital Subscriber Line Access Multiplexer (DSLAM).