I've used three of the Freecom Toughdrive Pro's (160Gb) for a couple of years now without incident (well, apart from silly old me corrupting one of them). They bounce well.
Despite Callum's experience, I use mine with a d2 and a laptop without the need for external power.
freecom tough drives 2 of no problems at all , buying another 500 gb one this week for personal home use to free up my pc hard drive space.
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