1、DUAL BAND: The USB WiFi dongle has a built in chip, RTL8821CU, which continues the IEEE802.11 a/b/g/n/ac universal wireless network technology. Speeds up to 5GHz (433Mbps) and 2.4GHz (150Mbps), 5GHz is great for HD video streaming and lag free online gaming, while 2.4GHz WiFi is good for normal usage such as web surfing, music, online chatting, etc. 2、SUPPORT AP MODE: Wireless WiFi adapter set to AP Transmit Mode can convert your computer's wired network to WiFi signals so that cell phones, tablets, laptops, TVs, projectors, printers can connect to WiFi Internet wirelessly. 3、DRIVER FREE: PC WiFi adapter has built in driver software, plug in the card, the driver will be installed automatically and your computer will connect to WiFi. If your computer can't access to the Internet or can't read your CD drive, then this will be a perfect choice. 4、SECURE CONNECTION: USB WiFi dongle works with most routers, secure WFA/WPA/WPA2/WPS2.0/WAPI WiFi connection. 5、MULTI SYSTEM COMPATIBILITY: 2.4G 5G dual band wireless network adapter supports for Windows 10/8.1/8/7/XP/Vista, for OS X10.9 to 1.13, for Linux.