The TP-Link Archer AX21 is a Dual Band WiFi 6 Router that supports the latest wireless technology, including 802.11ax, 802.11ac, 802.11n, 802.11g, and 802.11b. It has a maximum speed of 1.8 Gbps, with 1200 Mbps on the 5 GHz band and 574 Mbps on the 2.4 GHz band. It also has a USB port and supports VPN Server and Client, which includes Open/PPTP/L2TP over Ipsec protocols. The router is also Certified for Humans, which means it is easy to set up with Alexa, making it a great option for smart homes. With Wi-Fi 6 technology and OFDMA, the router can communicate more data to more devices simultaneously, providing extensive coverage with its Beamforming technology, 4 high-gain antennas, and an advanced front-end module (FEM) chipset. The router works with all internet service providers, but a modem is required for most providers. Additionally, it has a special feature of WPS, which makes it easier to connect devices to the router securely.