This ZTE AC adapter is designed for use with AT&T WF720, WF721, and WF723 home phone modems. It provides a reliable and efficient power supply to ensure your modem is always ready for use. The adapter is compatible with both ZTE and AT&T brands, making it a versatile choice for any user. With an output voltage of 5V, this AC/DC adapter is perfect for powering your home phone modem. It is easy to use and comes with all the necessary components for a seamless installation. This adapter is a great choice for anyone looking for a reliable and efficient power supply for their modem.