At 07:41 PM 6/22/2004 +0100, Peter Moreton wrote:

>Herbert,
>
>I have used Win2K / XP with multiple USB serial devices, and can report 2
>big problems:
>
>1/ The COM ports frequently re-enumerate (especially when
>plugged/unplugged), and as a result the COM port numbering sequence can
>change.
>
>2/ Many of the USB COM port drivers don't work reliably with more that 2
>adaptors present. I have however, used a device from 'Keyspan' that reliably supports 4 USB com ports.

Edgeport adaptors avoid all these problems. I've had over 40 ports on one USB connection. You wouldn't want to see the list price though.

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