The Back Panel, TD-W8970, USB1, RESET, Method one, LAN4/WAN, LAN3, ON/OFF, POWER, Antennas - vdsl | TP-Link TD-W8970 | TD-W8970 V1 User Guide (Page 15)
TP-Link TD-W8970 ADSL2+ modem-router Review: TP-Link's sub-$100 wireless router has a good range of features and proved to be quick and reliable during our test period - Networking, Wireless & VoIP -