IEEE 802.11n/g/b Wireless Standards: RTL8192EU Chipset, 2.4GHz Enhanced 300Mbps Wireless Data Transmission Rate, Ultra Speed, Wide Range. Broad Compatibility: Ideal for PC laptop desktops, supporting Linux, Mac OS 10.4–10.8 (not compatible with Mac OS 10.9–10.15), Windows 11/10/8.1/8/7/XP/Vista, and more. Easy to use for Windows 10/11: Windows 10 and Windows 11 drivers don't need to be installed! This wifi adapter is easy to connect to; if the indicator light is flashing, it is functioning properly. Internal Antenna & Save Space: The compact size of the internal omni-directional antenna allows for greater coverage and stability while being portable and occupying no space.