USB 2.0 Cable USB2.0 Extension Extender Male To Female Cabo USB Data Cables For PC Keyboard Printer Camera Mouse Game Controller Description: 1.5 meters above the line is a magnetic ring. Single magnetic ring. 0.3 meters and 0.5 meters is no magnetic ring. This must be explained Magnetic ring is the role of anti-electromagnetic interference to reduce the transmission loss. As the line longer, power supply data transmission and other losses began to increase, especially after more than 3 meters, the signal and power supply has been attenuated. If it is connected to the kind of voltage and current requirements of relatively high equipment, such as some mechanical mobile hard drives, printers, etc., it is recommended that buyers of external power supply equipment.
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