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Grounding a USB trackball necessary?

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Ninten-doh:
This is probably a really dumb question, but I want to be sure.  I recently purchased a 2 1/4" Happ USB trackball and it has the green grounding wire that stick out of it.  I thought that the USB connection would ground the unit, no?  Is grounding the green wire still necessary?

Timoe:
This is teh GOOD QUESTION


NO you do not need to ground that sucker.  Infact, just take the green wires off all together.

2600:
Necessary.. depends who you ask?

I think my opinion is in the minority, but yes ground the trackball.  Ground your trackball, your spinner, and anything else that may need it.

Timoe:
Why?


and


how?

DaveMMR:
I was about two days away from asking the same question Ninten-doh. 

Basically, according to the Optipac instruction page, it just attaches to any ole piece of metal to prevent static build-up (the same reasons you would wear a wrist strap, or at the very least, touch a piece of metal, before working on the insides of a computer). 

I was going to ask because I have no convenient way of attaching it to something (panels swap out).  I was just going to screw it down, hide under a blanket, cover my eyes and hope that somehow, everything turns out okay.

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