TP-LINK ADSL2+ Ethernet/USB Modem Router TD-8816 ADSL2+ Ethernet Modem Router TD-8816 is a high performance modem router that provides a full rate of ADSL2+ standard with the superb reliability and a cost-effective solution for home and small business. It is a 2-in-1 device that combines the function of a high-speed DSL modem and a one-Port 10/100Mbps NAT router. Using the TD-8816, you can easily create a secure and high-speed wired network to share files, music, photos, and printers with multiple computers. 2-in-1 Solution. As a 2-in-1 device,TD-8816 combines the functions of a high speed DSL modem, and a one-Port 10/100Mbps NAT router.