Hard cylinder on a cable - purpose ?

[Guest]

Hi there,

kind of silly question, but : what's the main purpose of the "hard" cylinder on a cable (usb, etc) right after connector. Shield or protection of warp or what ?

tia

 

[Guest]

 

[Jadis]

it controls the cable's mind rendering it emotionless and thus having the will to rebel.

 

[rexter]

it controls the cable's mind rendering it emotionless and thus having the will to rebel.

LOL



Ferrite - Ferrite cores are used in electronic inductors, transformers, and electromagnets where the high electrical resistance of the ferrite leads to very low eddy current losses. They are commonly seen as a lump in a computer cable, called a ferrite bead, which helps to prevent high frequency electrical noise (radio frequency interference) from exiting or entering the equipment.
http://en.wikipedia.org/wiki/Ferrite_(magnet)