Plugging the USB half-way
As you can see from the above image, the power and ground pins of a USB connector are situated on its either side and the two data pins are placed in between. Also notice that the data pins are situated a bit inward compared to the power pins. As a result of this, when you plug in a USB, power is supplied to the device first before it can begin transferring data.
“Okay, that’s fine, but what am I to do with this?” you ask.
Well, my friend, you can exploit this subtle feature by plugging a USB port only half way into the device. This enables the device to power up without making a data connection. In case of a mobile phone, you can connect the data cable half way to charge the phone without mounting the SD card. This can be pretty useful when working with MP3 players too.
“This is pretty cool!” you say. “Thanks!”
Anytime. 
This is pretty cool!
Awesome.
The problem I usually have is devices not getting mounted, but I think this has more to do with the device than the USB connector.
Chavie
January 17, 2012 at 9:00 pm
Hmm, I have that issue too, but that’s another problem.
thameera
January 17, 2012 at 9:05 pm
That particular problem has more to do with your OS I think
chathuraw
January 17, 2012 at 9:57 pm
“This is pretty cool!”
Madhawa
January 17, 2012 at 9:06 pm
thameera
January 17, 2012 at 9:30 pm
This is pretty cool! Thanks!
Uditha Umesh (@udithaumesh)
January 17, 2012 at 9:26 pm
Anytime!
thameera
January 17, 2012 at 9:30 pm
Nice machan. Thanks for sharing.
Gayan Wijewickrama (@GayanMW)
January 17, 2012 at 9:35 pm
Thanks mchan
thameera
January 17, 2012 at 9:38 pm
Thank yew for da info;
g
January 17, 2012 at 10:07 pm
anytime
thameera
January 17, 2012 at 10:21 pm
But the difference is only 1 or 2 millimeters.
budhajeewa
January 18, 2012 at 8:15 pm
Yes, but plugging it half way isn’t difficult. The second photo shows a USB connected half way.
thameera
January 18, 2012 at 8:29 pm
I’ll try and tell.
budhajeewa
January 18, 2012 at 8:36 pm