Installation CD of another age (very primary, in German, no instructions for use) more installation very laborious. Attention this GPS is programmed in 9600 Bds so inaccessible on Open Cpn without loading GPSgate interface to create a 4800Bds virtual client Com port \ r \ nThe German manufacturer Variotek does not answer the questions asked (3 unanswered requests) \ r \ nThis product is not intended primarily for basic users and requires to be resourceful