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How to determine USB cable speed with Canon Scanner Lide 50?

We have a Canon Lide 50 scanner with the cable, but no documentation.  When scanning a picture, It seems to go fairly slow.  Is this a function of it being an older scanner, or does it have something to do with the speed of the USB cable?  I looked at some old postings here about determine the USB speed (http://www.computerhope.com/issues/ch000602.htm), but can't figure it out and am not sure if that's even related to the slow scanning issue.  The computer is brand new.   Any ideas?
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the speed of the usb depends on the usb controller.
It can be on-board - then it is the speed as listed for your motherboard.
But you can use a PCI to usb adapter card, and have usb 2 on a PC with usb 1
the scanning going slow, imho has nothing to do with USB speed, only copying from the scanner to pc will be slower
USB1 = 12MB sec   ---USB 2 =480 MB sec

btw - you can verify which you have in device manager, open the usb section and look for the word "enhanced" === USB 2  ---if not, you have usb 1
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