GlobalSat G Star IV BU353 S4 Aadhar GPS (Black) GlobalSat BU353 SIRF IV is fastest GPS used for many purpose and mainly in UIDAI Aadhaar enrolment for get accurate location of Aadhaar Centers. USB wired GPS for Aadhaar Kit to determine Latitude and Longitudes. GStar IV is most famous GPS Device used in Car, Marine and Aadhaar enrollment Kits.