Bmw gt1 Product overview Gt1 can complete coverage of all bmw systems, one thing that can only be done using the gt1, this function is called electronic control unit (ecu) programming and configuration. Many of the original electronic systems on modern vehicles can now be re programmed using software; historically any changes to rectify software problems would involve a new ecu which would be purchased from the parts department and that is the only way that the independent market today is able to overcome these problems. Product feature (1).The differences of the hardware versions in the multiplexer: Version---lan speed---cpu---vehicle e65 scanning time 1.8-----10mb-----586-------13minutes 2.1----100mb---pentiumii-----3minutes (2) good-quality cables Product specification/models Configuration: 1.Gt1 yellow multiplexer(dk 2.1 version) 2.Obd-ii diagnostic cable 3.20 pin diagnostic cable 4.Lan cable (100 mb) 5.Wireless card 6.Dis 40g hd 7.Sss 40g hd After sale service 1) free update during one year (we will send you free hard disk update program by express company. 2).Free maintenance lasts one year as well as the warranty period, 3) free technical support by internet or via phone . Packed in tool box or carton