yep, there's a magnet in there. ferrite dongles like that are supposed to wipe out nasty RF interference floating around. folks say it does quiet things down, but also smooshes dynamics. up to you, but i'd keep it on in case there's a buzzy component around.
Originally Posted by spaceconvoy Thanks for the replys - actually it's the usb cable to my digital camera, so why would it need to eliminate interference
Bits is bits, right... could interference possibly corrupt the data?
that's probably a stock OEM cable used for anything, so the same cable could have been packaged with something that has to live near a monitor or something. and yes, that cable can be used to feed info to your Micro DAC too.