fat round things in cords?
February 19, 2009 3:22 AM Subscribe
what are the fat round things
sometimes found inline on various types of electronic cords?
posted by karl88 to Technology (10 answers total) 6 users marked this as a favorite
some USB chords have them, printer cords, power supply cords, many don't. what do they do? what if your replacement power supply doesn't have one? (try googling this question- you get nowhere)