Function: 13-piece barrel connector with adjustable tip is a combination of 5.5 x 2.1 mm universal supply. Even if you only have one adapter, you can charge your laptop from a different outlet. The USB DC cable is used for charging 1A~3A; the DC plug is suitable for voltages lower than 36 V and the maximum current is 5A. Part: The standard size of all DC sockets is: 5.5 x 2.1 mm. The parameters of each tip are listed in the description. They are suitable for almost all laptops. very full. Please check if you need this before buying. Compatibility: The DC USB cable is suitable for devices with 5.5 x 2.1 mm DC sockets, such as B. routers, cameras, driving recorders, desk lamps, TV boxes, speakers, LED displays, USB fans, etc. This DC connection kit is with laptop computers, external supplies and integrated . For example, with , with , with , with , with , with , etc. (The color with the production batch, but the effect remains the ) Material:plastic colour:Black Package Contents: 1 x 1m 3A USB to DC plug cable 1 x Type-C hollow plugs 1 x -USB hollow plugs 1 x Mini USB hollow plugs 1 x 5.5 x 2.1 mm hollow plugs 1 x 5.5 x 2.5 mm hollow plugs 1 x 5.5 x 1.7 mm hollow plugs 1 x 4.8 x 1.7 mm hollow plugs 1 x 4.0 x 1.35 mm hollow plugs 1 x 4.0 x 1.7 mm hollow plugs 1 x 3.5 x 1.35 mm hollow plugs 1 x 3.0 x 1.1 mm hollow plugs 1 x 2.5 x 0.7 mm hollow plugs 1 x DC hollow plugs Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.