USB 2.0 interface SiRF Star III highly sensitive GPS chipset Use with compatible mapping software not supplied to turn your netbook or laptop in to a navigation device Compatible with Windowsreg 2000XPVistaServer 2003 and Windowsreg 7 Also compatible with Macintosh OS 89 10 Linux RedHat 7.389 Supplied complete with CD containing drivers SpecificationsUpdate rate1 HzProtocols supportedNMEA 0183 v3 GPGGA GPGSAGPGSV GPRMC GPGLL GPVTGBaud rate4800 bpsPower sourceDC 5.0V USB bus powerPower consumption55mAGPS antenna typeBuilt-in ceramic patch antennaGPS status LEDsBlinking - GPS position fixedSolid light - GPS position is not fixed