Four lines of output are what u mean
The two outside is for power supply, and the two inside is data transmission
Red positive 5V, black ground wire, green data line, white CLK (Shi Zhongxian)
The U disk is the USB interfaceThe long side is the power cord, and the shorter one is the data line. Draw out the red line and black thread.The long side is the power cord, and the shorter one is the data lineRed line: power positive (the sign on the line is: +5V or VCC)White line: negative voltage data line (marked as Data- or USB Port -)Green: positive voltage data line (ID: Data+ or USB + Port)Black line: grounding (marked as: GROUND)
