DC直流电源线 5.5 2.1母口转USB插座头5V充电转接线3A/2A/1A              

非常实用的一条线子。

假若您已经有5V1A、5V2A、5V3A、5V1.5A的DC电源，接头是5.5的，通过这条转接线就可以变成是USB母口的电源了。

从而可以再接USB线给不同的设备充电。有需要也可以反接使用的，大大提高电源的实用性！
 
 
 
DC头外径是5.5MM，内径2.1mm（2.5）的母口，USB是通用标准的母座，全包边，纯铜线芯，可过3A大电流
 
 
长度12cm左右（含头）
 
标准的内正外负，母头的芯是正极，外壳金属圈是负极
DC DC Power Cord 5.5 2.1 Female to USB Header 5V Charging Cable 3A / 2A / 1A

A very useful line.

If you already have 5V1A, 5V2A, 5V3A, 5V1.5A DC power supply, the connector is 5.5, through this adapter cable can become a USB power supply.

Which can then connect the USB cable to charge different devices. There is a need can also be reversed, greatly improving the usability of the power supply!
 
 
 
DC head diameter is 5.5MM, diameter 2.1mm (2.5) of the female port, USB is a common standard female seat, all-inclusive edge, pure copper core, can be 3A large current
 
 
About 12cm in length (with head)
 
Inside and outside the standard negative, the female core is the positive, the shell metal ring is negative