EVER WONDERED WHAT THIS SMALL CYLINDER DOES ON YOUR LAPTOP? CHECH IT OUT.

What's That For?

Many of us have absolutely no clue what the pieces on our electronic devices are for...because we're only worried if they work or not!

Laptop Charger

Take your charger for example, have you ever realized there's an additional cylinder piece on the chord that seems to be there for no reason?

Isolate Noise

Well it's actually used to isolate electro-magnetic noise, and block the cable waves or noise in AC-DC converter.

EMI ring

This one small piece scatters currents in a ferrite ceramic, and is generally called a core, block, or EMI ring.