Flash drive only mounts when connected through USB hub

I have a PNY 32gb USB 2.0 flash drive, when trying to connect the drive directly to my Mid 2012 MBP (specs attached) the drive never mounts, doesn't list in diskutil as an unmounted drive either, however when I plug the drive into a Micro Innovations USB Hub (old ~ 2002) the drive mounts (albeit slowly).
On my iMac (Mid 2010 I7) the drive works perfectly in the machine or through Apple USB Keyboard.
Any help?

Is that the only USB drive that doesn't work with your MBP ?
Everything else works fine?

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The "kernel panic message" each time seems to be the date and time and then "localhost /usr/libexec/panicdump: Error (-1) setting variable - 'aapl,panic-info'"
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Finders preferences are all checked to show items on desktop.
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Hello
from that
"System extension cannot be used The system extension "/System/Library/Extension/IOStorageFamily.Kext" was installed improperly and cannot be used"
try this
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checking for any missing update ?
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Pierre

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3. NOTE: it displays "Battery Fully charged" icon on the screen without any "Lock" icon.
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KINDLY GUIDE ME THE SOLUTION. APPRECIATE YOUR RESPONSE in advance...

"I get the feeling that this is a software issue that could probably be solved quite easily"
Since you have already tried all the normal troubleshooting solutions, take the iPod to your nearest Apple Store for a *proper diagnosis.* The staff there will be able to confirm if your problem is software or hardware _*at no cost to you.*_
!http://i50.tinypic.com/izvwo1.gif!

Flash drive only mounts when connected through USB hub

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