Key Features: "Standards: IEEE 802.11n, IEEE 802.11g, IEEE 802.11, CSMACA with ACK. Frequency range: 2.4-2.4835 GHz. Working channel number: 13. Support the network protocol: CSMA CA with ACK. Bus interface: USB 2.0. Spread Spectrum: DSSS Modulation Type: OFDMCCK16-QAM64-QAM Wireless Transmit Power: 20dBm(Max EIRP) LED Light: Status Dimensions (L*W*H): 33mm * 16mm * 6mm Support system: Windows XP vista Windows 7 Windows 8Windows 10Mac Linux. Easy to install with driver CD."