02-05 HONDA VFR800FI: Dynojet Power Commander 3 USB USB (Universal Serial Bus) port provides an instant, problem-free way to connect your Power Commander to a computer. Provides precise information for fine-tuning a fuel-injected motorcycle when changing an air filter, installing a new exhaust system or doing additional engine performance modifications. Each 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 for downloading at their web site. www.powercommander.com. If you do not have a computer, you can change the settings with three touch buttons on the faceplate.