AR9271 is an IEEE 802.11b or g or n wireless USB adapter. It provides users with the transmission of IEEE 802.11b or g or n 150 Mbps wireless network in the 2.4 GHz frequency band and is compatible with IEEE 802.11b or g STANDARDS 54 Mbps wireless devices. The AR9271 has multi-streaming. It is based on 802.11n MIMO and can be used in reference designs to serve the network, PC, and consumer electronics markets. Note: This WiFi adapter supports Linux or Kali Linux, but we do not provide any driver support for Linux, you can download the driver online. Technical index: Chipset: Atheros AR9271 Standard: IEEE 802.11b or g or n Data transmission speed 802.11b: up to 11 Mbps 802.11g: up to 54 Mbps 802.11n: up to 150 Mbps Supported operating systems: Windows 7 or 8 or 10 32 or 64-bit, Linux, Kali Linux Interface: USB 2.0 Antenna: 3 dBi 2.4G Hz antenna Frequency range: 2.412-2.483 GHz The packaging includes: 1xusb antenna Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.