Supporting 256QAM technology increases 2.4GHz data rate from 150Mbps to 200Mbps for 33% faster performance. 2.4G Dual Band connections for lag-free HD video streaming and gaming Mini Size for Convenient Movement Without Unplugging it Support Windows 10/8.1/8/7/XP, Mac OS X. For Windows, no need to download the driver Driver maybe required, the driver download links included in the guide book