Re: usb2 downcompatible to usb1 ?
From: wesley (w_oland-at-_at_yahoo.com)
Date: 01/04/04
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Date: Sat, 03 Jan 2004 20:19:23 -0600
On Sat, 03 Jan 2004 22:14:07 +0100, peter pilsl wrote:
>
> I bet this is a very stupid question, but I'm soly a poor network- and
> databasetechnican and just never gave a thought about usb-hardware.
>
> For my private laptop I recently bought a external dvd-burner, which is
> "classified" as usb 2.0 (liton external dvd-burner 411sx), while my laptop
> is classified as usb1.1 (dell inspiron 4000)
>
> Is usb2.0 down-compatible with usb1.1 ? Or is there simply no way to get
> this work ? I'd like to know before I unpack the whole device in case I
> need to return it.
>
> thnx a lot,
> peter
Don't know about this particular device, but I use an external USB 2.0
hard drive on both 1.1 and 2.0 computers without problem. The only problem
is that the 1.1 computers run the drive very slow due to the much lower
data transfer rate.
I would think the 1.1 computer would "see" the external DVD drive, but
there would be the question as to whether the data transfer rate would be
fast enough to run the burner correctly. It could be their firmware or
software has been program to prevent such a mismatch. The Liteon web site
didn't seem to offer much help on this issue, but you might want to do a
more complete google search.
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