Is it practical to use a USB 2.0 harddrive as an online replication destination?

This is a questeion for the Microsoft Exchange experts.  I am looking to know if using an External USB Hard Drive would work as a Storage Group Copy destination.  Alternatively, what "external" options might be recommended for the best (price being key) external data store for Microsoft Exchange 2007.

Any price-sensitive storage suggestions would be appreciated.  This is a single server Exchange installation on a 1 RU server that does not have any more physical room for new harddrives and just looking for a fast and quick way to add extra drive space.
bwhittaker69Asked:
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SysExpertConnect With a Mentor Commented:
USB is dead slow.

If possible use external SATA eSATA box for similar price and add even a cheap SATA controller with eSATA connection on the back. 500 GB should not cost total more than $150


I hope this helps !
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mercersCommented:
What is your goal? I presume you are wanting to have a ready copy of the message store for fail safe purposes.

Replicating to a USB drive would be very slow and could cause problems in times of high e-mail volume. Replication is best done between two servers.

I would run an online backup to the USB drive.
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bwhittaker69Author Commented:
THANKS ..... eSata card with an external multiple Bay eSata drive enclosure is absoltely perfect and very inexpensive... thanks !
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