USB port provides an instant, problem-free way to connect your Power Commander to a computerProvides precise information for fine-tuning a fuel-injected motorcycle when changing an air filter, installing a new exhaust system or doing additional engine performance modificationsEach unit includes a built-in microprocessor and a specific map designed to improve engine performance over stock; Dynojet continuously maps new calibrations for each bike, which are available for downloading at their website (www.powercommander.com)If you do not have a computer, you can change the settings with three touch buttons on the faceplateOEM-style wiring connectors with improved harness protection are supplied; no wiring modifications requiredIncludes easy-to-follow instructionsDirect injector control technology manages the fuel curveFeatures an expansion port for future add-on modules from DynojetSoftware is compatible with Windows 98se and newer; opens all maps with .djm extensionUSB special cable and 9V battery power adapter are includedAdapters allow you to activate a Power Commander for changing or altering maps while disconnected from the bikeMade in the U.S.A.