What is the difference between free driver and non-free driver? Free driver is plug and play,non-free drivers need to install the CD driver Or go to the website to download the driver. Feature Dual Band: Alternative 11AC5.8G and 11N2.4G connections for TV shows, HD movies, streaming, and online gaming to avoid wireless interference. 433Mbps Wireless Speed at 5.8GHz band or 150Mbps Speed at 2.4GHz band. Support Soft AP mode to create a Wi-Fi hotspot. Support WPSWi-Fi Protected Setup encryption method to free you from remembering long passwords. Mini portable design for easy carrying, it's convenient to use. Specifications Item Name: Dual-Band WiFi Adapter Interface Type: USB2 .0 Product color: black Product material: ABS material + USB head Product chip: Chipset Realtek RTL8811 Frequency range: 2.4GHz+5GHz Transmission Rate: 600Mbps 11N:150Mbps, 11AC:433Mbps Network mode Frequency: Dual Band 2.4GHz + 5.8GHz Standards: IEEE 802.11AC, 802.11b, 802.11g, 802.11n RF Power: 20dBmMAX Voltage: DC5V5% LED indicator: Link/ACT Button: WPS Size: 29*15*7mm Encryption: WEP Encryption, WPA-PSK, WPA2-PSK, WPA/WPA2 64/128bit Encryption. Applicable system OS: for Windows Vista/XP/2000/7/8/10, for Linux, for MAC OS Package Included 1 x 600M USB WiFi Adapter Feature: Dual Band: Alternative 11AC5.8G and 11N2.4G connections for TV shows, HD movies, streaming, and online gaming to avoid wireless interference. 433Mbps Wireless Speed at 5.8GHz band or 150Mbps Speed at 2.4GHz band. Support Soft AP mode to create a Wi-Fi hotspot. Support WPSWi-Fi Protected Setup encryption method to free you from remembering long passwords. Mini portable design for easy carrying, it's convenient to use. Specifications: Item Name: Dual-Band WiFi Adapter Chipset: RTL8811 Interface Type: USB2 .0 Frequency range: 2.4GHz+5GHz Transmission Rate: 600Mbps 11N:150Mbps, 11AC:433Mbps Standards: IEEE 802.11AC, 802.11b, 802.11g, 802.11n RF Power: 20dBmMAX Size: 29*15*7mm Button: WPS Voltage: DC5V5% LED indicator: Link/ACT Encryption: WEP Encryption, WPA-PSK, WPA2-PSK, WPA/WPA2 64/128bit Encryption. Supports for Windows XP/Vista/WIN7/8/8.1/10, for Mac 10.4-10.11,for Linux os etc. Package content: 1 x 600M USB WiFi Adapter no retail package