to 7450 Series Charging Adapters: 7450 refers to the 7.4x5.0mm size, which is usually found on laptops and projectors ( When using the adapter, the voltages of the adapter at both ends of the adapter should be the same as the operating voltages of the device The bidirectional design ensures compatibility in both directions, making these adapters essential tool for hobbyists and professional The converter head allows for seamlessly conversion between the connector and a standard DC7.4x5.0 mm, meeting the needs of remote controling models,, and other applications that require a reliabled power transfer solution Suitable for internal converting on energy storage power supplies, solar panel, aeromodels, laptops port Type C interfaced, fast charging and data synchronization transmission