Function: The 13-piece hollow plug with adjustable tip is compatible with the 5.5 x 2.1 mm universal power supply. It allows charging laptops from different outlets using a single power supply. The USB DC cable supports charging currents from 1A to 3A; the DC plug is suitable for voltages below 36V with a maximum current of 5A. Materials: Includes a USB 2.0 A to DC (24AWG) charging cable. The DC connector is made of high-quality stainless steel and gold-plated for enhanced conductivity. The USB interface is nickel-plated, wear-resistant, durable, and antioxidant. Design: All DC sockets feature standard dimensions of 5.5 x 2.1 mm. Specifications for each tip are provided. Suitable for most laptops. Please verify compatibility before purchase. Compatibility: The DC USB cable works with devices featuring a 5.5 x 2.1 mm DC socket, such as routers, cameras, car recorders, desk lamps, TV boxes, speakers, LED displays, and USB fans. This DC connector kit is compatible with laptops, external power supplies, and adapters. Compatible with brands including Dell, Toshiba, HP, ASUS. Included Components: 13 hollow plugs – Type-C, Micro-USB, Mini USB, 5.5 x 2.1 mm, 5.5 x 2.5 mm, 5.5 x 1.7 mm, 4.8 x 1.7 mm, 4.0 x 1.35 mm, 4.0 x 1.7 mm, 3.5 x 1.35 mm, 3.0 x 1.1 mm, 2.5 x 0.7 mm, and square DC connector. Easy to use and practical for everyday needs. USB to DC Power Cable – Maximum Current: 1000mA, Voltage Rating: 5V. Cord Length: 100cm / 39.37 inches. DC Tip Polarity: Inner Positive, Outer Negative. 10 DC Plug Connectors – 6.4x4.4mm, 6.3x3.0mm, 5.5x2.5mm, 5.5x2.1mm, 5.5x1.7mm, 4.8x1.7mm, 4.0x1.7mm, 3.5x1.35mm, Micro-USB, LED Terminal Connector. Plug and play design ensures convenient use and portability. Multi-Purpose Cable – USB to DC power cable with 10 interchangeable plug connectors, compatible with a wide range of household devices. Eliminates the need for multiple adapters when using various electronics. Universal Use