Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
I notice that on some USB cables, there is a, um, what looks like a swollen area wrapped around the wire near one end (or both ends). My HTC Droid Eris has a USB cable that has one on it. It looks like a cylinder of some kind. What is it and what does it do? Thanks.
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