ferrite core on usb cable

https://w6mwzuc985.doodlekit.com/blog/entry/9062217/how-successful-people-make-the-most-of-their-ferrite-bead-smd

As with every piece of kit, using a magnetic Main can result in difficulties if Employed in common use. With right treatment, the chance of a tool breaking down because of continuous use of a magnetic core is modest.