USB sockets - not all work

  Gizmocat 11:53 07 May 2007

I have a Dell computer with 4 rear usb ports and 2 front.
The 2 front ones work with 2 MP3 players, but will not support my Canon Digital camera, Nano Ipod or Webcam. These all work in rear.

I know I can obtain a USB hub to avoid unplugging , however I wondered why there appears to be some incompatability?

  The Brigadier 12:00 07 May 2007

USB comes in 3 flavours basically you have:
USB 1.1, USB 2.0 And USB 2.0 Ultra Fast.
If your ports are USB 2 they will read USB 1.1 & USB 2.0 only.
A USB hub can be bought for under £10 in ASDA but make sure what speed it is.

  Gizmocat 14:51 07 May 2007

Thanks - how do I know what speed to buy and how do I check what my existing ports are?

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