If it's made of iron and its necessity is in doubt, you might consider eliminating it from a balloon or kite rig. The ferrite beads near the small plug on the USB cables that came with the PLOTS visible/IR camera kit are easy to remove.

Are ferrite beads necessary?

Ferrite beads and cores are used in equipment design to suppress and dissipate high frequency noise levels caused by electromagnetic devices. ... However, ferrite cores may also need to be installed on cabling as well.

Is it safe to use a laptop charger without a ferrite bead?

Your electronic gadgets also produce EMI during operation. For example, if you connect a camera to your monitor, the camera would produce intereference and cause your monitor to flicker without the presence of a ferrite bead. If left unabated, EMI can wreck havoc with your computer peripherals.