WHAT Is This Cylinder On Your Charger For? You’ll NEVER Guess!

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We might be taking our charge cables for granted. Sure, we love how they charge our much needed and loved devices like our mobiles and tablets but besides that function we don’t know how much work went into the cord.

One component of the charge cable is the small cylinder-like module. Usually this part is near the end of the cable. You will be surprised to find out what this unassuming piece does. Let’s just say this piece plays an important role in protecting your devices from slowly deteriorating.


Most people have no clue what it is.

Have you ever wondered what that is?

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Next, facts you didn't know about technology.

The thick part of the cord is not just there for decoration.

This piece serves a very important purpose.

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Next, facts you didn't know about technology.

The cylinder near the end of the cable is actually there for a good reason.

We know where the laptop charger goes.

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Next, facts you didn't know about technology.

The ferrite bead suppresses high frequency noise from electronic circuits. Therefore, electro magnetic noise and AC-DC noises are suppressed. Ferrite beads are also referred to as EMI filters, chokes, blocks, and rings.

Noise control.

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The EMI ring is made up of ceramic compounds from iron oxide and other metals.

A powerful tool.

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Cables work as antennas. Therefore, if a device has high radio frequencies this would pass through the wire. The choker blocks the cord from transmitting and receiving signals.

Here's the interior of an EMI filter.

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Next, facts you didn't know about technology.

You learn something new every single day!

So now if anyone ever asks you know exactly what this is.

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Next, facts you didn't know about technology.

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