3dBi detachable Antenna Dual Band 600 Mbps (2.4 GHz / 5.8 GHz) Transfer rate up to 150Mbps ( 2.4GHz) or up to 433Mbps(5.8GHz) Security support for 64/128-bit WEP, WPA, WPA2, WPA-PSK,TKIP, AES OS support: Windows CE/2000/XP/Vista/7/8/8.1; Linux, Android, MacOS X Chipset: Realtek 8811AU