Includes USB C and the following DC plug sizes for wide compatibility: 5.5 x 2.1 mm, 5.5 x 2.5 mm, 7.4 x 0.6 mm, EC5, and 7.9 x 0.9 mm. Wide compatibility across devices and applications: - Drones, laptops, electric vehicles, tools, energy storage devices, solar panels, and small devices. Product purpose: - The female series adapter is an important accessory for power conversion. - Supports charging functions. Key benefits: - Flexible power connections with multiple plug sizes in one set. - Simplifies power setup by reducing the need for multiple adapters. - Enables charging between power sources and devices with compatible ports. 2-3 practical use scenarios: - Field drone setup: quickly switch to the required plug size (EC5, 7.9 x 0.9 mm, or others) to connect a battery or charger to the drone system. - On-the-go device charging: use the appropriate connector with a USB C power source to charge laptops, tools, or small devices. - Solar or energy storage integration: adapt a solar panel or battery bank output to power a USB C device or other compatible equipment.