Five meters usb extension cord, how to solve the power supply problem?
Generally only need to extend the power supply, but now there are good or bad line, to buy a good point, it should not be added in a short distance, but it will not be too long
First look at the design of the casing material is required, the diameter of the casing to the cable diameter of 1.5 times.
Two 6 square millimeters with pvc20 tube, 2.5 square millimeters with pvc16 tube
