[Perfect Design] Many older power adapters, such as those for HP or Dell laptops (4.5mm x 3.0mm), use barrel connectors. This converter allows you to use those legacy adapters to charge modern USB-C devices. [Convenient] This cable converter eliminates the need for bulky chargers and power bricks. It’s compact and lightweight—ideal for carrying in your backpack for office, studio, or travel use. Charge USB-C devices and compatible older HP or Dell laptops (4.5mm x 3.0mm) without multiple adapters. [Power Adapter Compatibility] Compatible with HP adapters: 19.5V, 2.31A (45W), 3.33A (65W), 4.62A (90W), 6.15A (120W), 6.9A (135W), 7.7A (150W), featuring a smart 4.5mm barrel connector with blue tip. Compatible with Dell adapters: 19.5V, 2.31A (45W), 3.34A (65W), 4.62A (90W), 6.7A (130W), featuring a smart round 4.5mm x 3.0mm barrel connector with center pin. Input power must be equal to or greater than output power. For example, a 45W input adapter supports up to 45W output (e.g., 20V @ 2.25A). [Built-in PD Chip] Features a built-in USB Power Delivery (PD) chip (DC4506/4530 to USB-C) that automatically negotiates voltage levels—5V, 9V, or 20V—and supports up to 100W output. Compatible with most USB-C–enabled devices. [Input and Output] Input: DC4506/4530 female connector, 15V–20.5V. Output: USB-C male connector, PD profile: 5V / 9V @ 1.5A, 20V @ 5A. Note: 1) Input power must be ≥ output power. Maximum output power is 100W. 2) This converter does not support PD 12V or 15V profiles—verify your device’s charging requirements before use. [Durable] Built with advanced manufacturing techniques and high-quality internal wiring for long-term reliability and consistent performance. Color: Black Material: Plastic Package Contents: 1 × DC to USB-C Power Cable Note: Color appearance may vary slightly due to lighting and screen settings. Measurement tolerance: ±1–3 cm.