Pins USB shield uses

Using Arduino Programming Questions
#1

I am using USB shield with arduino Uno and was connecting relay on pin 9 but it started to work not as program should do I thought it could be because shield
So what pins shield uses ??

#2

So what pins shield uses ??

Which shield? You say USB Shield like there is only one.

#3

I didn't know that pins are different from one usb shield to another
I mean usb shield in this link http://www.dx.com/p/usb-host-shield-expansion-board-google-android-compatible-for-arduino-blue-156155#.VVTaYvmqqko

#4

You need to look at the schematics for the shield. DealExtreme does not make the board in the (not actually a) link.

The Sparkfun USB shield uses pins 7 to 13. That shield may, or may not, use the same pins.

#5