The D-Link WiFi Card Extender is a black dual-band device that supports a maximum LAN data rate of 300 Mbps. It features a single Ethernet port for wired connections and is designed to work with PCs. This extender operates on the 4G cellular network technology and provides wireless connectivity in the 2.4 GHz frequency band. Ideal for expanding the range of your WiFi network, this D-Link extender offers reliable and fast internet access for your devices.