Centurylink Greenwave C4000XG Wi-Fi Hotspot Modem in White is a dual-band modem-router combo with four LAN ports. It offers multiple wireless connectivity options such as 802.11a, 802.11b, 802.11ax, 802.11n, and 802.11g. This modem is designed for home networking and connectivity, providing a reliable Wi-Fi hotspot for internet access.