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USB Cylinder

barneysplash · 2009-11-16 13:35:43

Hello all I was wondering if anyone knows what the small cylinders you get on usb cables and monitor cable are for. These are usually towards one end of the cable. I opened one with a pliers at the weekend, and all there is inside it is a metal cylinder, like a magnet but it does not appear to be magnetic. So what are they…

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16-11-2009 2:35pm

#1

barneysplash

Closed Accounts Posts: 1,205 ✭✭✭

Join Date: November 2005

Posts: 898

Hello all

I was wondering if anyone knows what the small cylinders you get on
usb cables and monitor cable are for.

These are usually towards one end of the cable.

I opened one with a pliers at the weekend, and all there is inside
it is a metal cylinder, like a magnet but it does not appear to be magnetic.

So what are they needed for?

Thanks

Barney

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#2 16-11-2009 2:53pm
alanucc

Registered Users Posts: 259 ✭✭

Join Date: December 2007

Posts: 235

http://www.dataq.com/products/hardware/accessories/fc.htm

The cylinder reduces the probability of interference when USB-based data acquisition products are exposed to high ambient electrical noise.

Google is your friend

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