Equipped with RT2561 chipset Data link protocol: IEEE 802.11g * Connectivity technology: Wireless Antenna: Integrated, NON-Detachable * Data transfer rate: 54 Mbps.Max range indoors: 100M Max range open space: 300M * Supported OS: Windows 2000, Windows XP, Windows 7, Windows Vista32/64, Linux * Note:It doesn"t support compact computer.