What is that cylinder on cables?
Problem
There's always that pesky cylinder thing on every cable I have. What is it? And more importantly, why don't Apple's products have them?
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1 Fix
Fix for: What is that cylinder on cables?
Take a look here for a very good explanation: http://computer.howstuffworks.com/question352. They're ferrite beads used as an anti-EMI and anti-RFI measure (chokes): Another source of noise is the cables connecting the devices. These cables act as nice, long antennae for the signals they carry. They broadcast the signals quite efficiently. The signals they broadcast can interfere with radios and TVs. The cables can also receive signals and transmit them into the case, where they cause problems.…
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