The AT&T Smart Wi-Fi Extender Air 4921 & Power Cord is a white dual-band extender with a maximum wireless data rate of 1600 Mbps. It features two Ethernet ports (RJ-45) for wired connectivity, ideal for PCs. This unit from AT&T is designed to boost home networking and connectivity by extending the Wi-Fi coverage in white color. With a maximum LAN data rate of 1000 Mbps and compatibility with 4G cellular network technology, this extender provides reliable and fast internet access for multiple devices in a household.