TP-LINK AX300 Wireless USB Network Card Laptop Portable Wi-Fi Transmitter. Interface: USB 2.0. Antenna: built-in antenna. Dimensions: 18.6mmx15mmx7.1mm. Operating temperature: 0℃~40℃. Storage temperature: -40℃~70℃. Humidity: 10%~90%RH without condensation. Standards: IEEE 802.11ax, IEEE802.11n, IEEE 802.11g, IEEE 802.11b