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On Monday 02 May 2011 23:17:05 Mark Knecht wrote:

quoted text
> OK, so I guess obviously the USB port must supply some amount power or

> even a simple flash drive wouldn't work as the memory in it has to

> require some sort of +/- supplies to function at all.

> In terms of my external USB hard drive, I have 3 like the following

> link except mine are 500GB.

> http://www.amazon.com/Buffalo-Technology-DriveStation-External-HD-CX500U...

/d

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> p/B002IYDEMW

> This drive ships with an external wall wart power supply and doesn't

> function without it on any machine I've plugged it into.

Yep, that device will not work when used only on usb-power. The 3.5" disks=

=20

need 12V, which the usb doesn't provide.
What I have here and what works with one connector on my laptops and needs =

two=20

on my desktops is a case for a 2.5" disk. (The disk I got from my brothers =

old=20

laptop.)
Have fun,
Arnold
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