ETC for Motorcycles, Bi-Wheeled ETC (Japanese Radio, JRM-11, JRM-12, JRM-21 USB Power Cord, Connects to the ETC Power Cord, Ensures ETC Power Supply from USB (5V2A recommended), so you can check and use the two wheel ETC without installation work. The length is about 25 centimeters, all have been conducted through power test. Connects directly from the wire to the connector, so there is no problem with its strength and waterproof performance. Please check your ETC wiring and connectors before purchasing. We will accept returns in case of initial defects. Buy with confidence!