Technical Details: Chipset: Realtek RTL8188eu Chipset Detachable External Rubber Antenna for better reception and performance Host Interface: High speed USB2.0 interface Wireless Standards: IEEE 802.11n, IEEE 802.11g, IEEE 802.11b Data Rate: 802.11n: up to 150Mbp , 802.11g: 54 / 48 / 36 / 24 / 18/ 12 / 9 / 6 Mbps auto fallback, 802.11b: 11 / 5.5 / 2 / 1 Mbps auto fallback Frequency Band: 2.4GHz ISM (Industrial Scientific Medical) Band