This USB to DC5V charging cable provides a reliable power option for 5V devices with multiple connector tips and length options. Key benefits Flexible connectors for broad compatibility: supports 5.5x2.1 mm, 5.5x2.5 mm, 4.0x1.7 mm, 2.5x0.7 mm, and 3.5x1.35 mm tips to cover a wide range of 5V devices. Stable, correct polarity for safe charging: inner positive and outer negative design ensures proper connection and charging performance. Wide length options for convenient placement: six lengths from 30 cm to 300 cm to fit desks, bedside setups, or workstations. Adequate charging performance: supports up to 5V 3A to power compatible devices efficiently. Suitable for a variety of devices: ideal for smartphones, speakers, desk lamps, facial cleansers, electric toothbrushes, and fans. Product features Connector options: 5.5x2.1 mm, 5.5x2.5 mm, 4.0x1.7 mm, 2.5x0.7 mm, 3.5x1.35 mm. Polarity: inner positive, outer negative. Cable lengths: six options, ranging from 30 cm to 300 cm. Power rating: up to 5V 3A. Application: USB to DC5V charging cable suitable for home or office use. Compatibility and use Works with 5V devices that match the included tip sizes. Ideal as a reliable power source for a range of gadgets in various settings. Use scenarios Home office: power a smartphone or small speaker from a USB power source using the appropriate tip, keeping your desk tidy with a length that fits your setup. Nightstand or living space: run a desk lamp or a fan with the correct connector, using a length that minimizes clutter and cord stretch. care routines: power facial cleansers or electric toothbrushes in bathrooms or bedrooms with the suitable tip and the right length for convenient access. This cable provides a practical, consistent solution for powering 5V devices with multiple connector sizes, reliable polarity, and flexible length options for home or office environments.