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Introduction to 4 Pins of USB(Red, white, green and black pin)

Introduction to 4 Pins of USB(Red, white, green and black pin)

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2-pin USB cable:


Two-pin USB cable is the specialized charging cable with both positive and negative charge.


4-pin USB Cable:


Order: Red, white, green and black. Red power is + 5v, negative white data (data -) (received data), the green data positive (data +) (transmission data) and black negative power supply (ground).


In conclusion, there are two types of USB cables which are widely used and commonly seen:

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  1. 4-pin USB plug (data cable). With it,  you can upload and download data as well as charge your devices.


  2.  2-pin USB cable can only be used to charge, as is mentioned above.