Tamiya 70190 Mini Motor Multi-Ratio Gearbox 12-Speed Kit 5v boost charging module PSU matters: Undervoltage causes throttling—use

PSU matters: Undervoltage causes throttling—use an official or high-quality PSU

Clear mini breadboard for tight builds

Compared with generic parts

Please observe ESD precautions specially in dry (low humidity) weather

Tamiya 70190 Mini Motor Multi-Ratio Gearbox 12-Speed Kit 5v boost charging module PSU matters: Undervoltage causes throttling—useConvenient Parts Kit for Faster Building, Testing, and Learning The Tamiya 70190 Mini Motor Multi Ratio Gearbox 12 Speed Kit is a practical kit from Circuitrocks for students, makers, and repair friendly builds. It fits well in projects that need classroom and quick build projects, while keeping setup straightforward for testing and prototype work. Compared with generic parts, this product stands out through details such as Compact size. That makes it