Function: the 13 piece hollow plug with adjustable tip is a combination of the 5.5 x 2.1 mm universal power supply. You can charge laptops from different outlets even if you only have a single power supply. USB DC cable is used to charge 1A ~ 3A; the DC plug is suitable for voltages below 36V, maximum current 5A. Materials: it is equipped with a USB 2.0 A to DC (24AWG) charging cable. The DC connection is made of high quality stainless steel and is gold plated. The USB interface is nickel-plated, wear-resistant, durable and antioxidant. Cut: All DC sockets have the standard dimensions: 5.5 x 2.1 mm. The parameters of each tip are all listed in the description. They are suitable for almost all laptops. Very full. Please check if you need this before purchasing. Compatibility: DC USB cable is suitable for devices with 5.5 x 2.1 mm DC socket, e.g. Router, camera, car recorder, desk lamp, TV box, speaker, LED display, USB fan, etc. This DC connection kit is compatible with laptops, external power supply and integrated former. For example, compatible with Sony, compatible with Dell, compatible with Toshiba, compatible with HP, compatible with ASUS, Acer etc. 13 hollow plugs included: 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, square DC, easy to use, every family needs such a set. / USB to DC Power Cable - Maximum Current: 1000ma, Voltage Rating: 5V. Cord Length: 100cm/ 39.37inch. DC Tip Polarity: Inner Positive(+), Outer Negative(-). 10 DC Plugs 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. Convenient Use and Portability! Multi-Purpose Cable - USB to DC power cable with 10 interchangeable plugs connectors, which makes it fits most of home appliances. You do not have to worry about finding the suitable adapters when using various devic