Cables, electric; Calculators; Carrying cases for mobile computers; Carrying cases specially adapted for electronic equipment, namely, calculators, computing devices, charging stations; Cases for pocket calculators; Bags and cases specially adapted for holding or carrying portable telephones and telephone equipment and accessories; Carrying cases specially adapted for pocket calculators and cellphones; Carrying cases, holders, protective cases and stands featuring power supply connectors, adaptors, speakers and battery charging devices, specially adapted for use with handheld digital electronic devices, namely, calculators and computing devices; Clear protective covers specially adapted for personal electronic devices, namely, calculators and computing devices; Computer cables; Computer carrying cases; Computer parallel ports; Computer serial ports; Connection cables; Data cables; Data access port for use with electrical control panels for connecting multiple data and electrical devices; Electronic motor vehicle ignition tuning kits comprised of an electronic control unit that monitors engine performances and delivers re-calculated sensor values to the original engine control unit to increase engine performance; Extension cables; Leather protective covers specially adapted for personal electronic devices, namely, calculators and computing devices; Micro USB ports; Pocket calculators; Power access port for use with electrical control panels for connecting multiple data and electrical devices; Specialty holsters adapted for carrying personal electronic devices, namely, calculators, computing devices, charging stations; USB cables; USB charging ports; USB charging ports for use in vehicles