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On Saturday 30 April 2011 23:33:24 Mark Knecht wrote:

quoted text
> One other consideration is device power. This will be hooked to a

> laptop and I'm not sure my laptop supplies SUB bus power.

> Additionally, I don't know how to test that myself. It seems from

> looking at the Roland site that there isn't a power connector on the

> UA25 so it's possible it wouldn't work, or maybe would require some

> sort of a USB hub that can supply power.

If your laptop has standard-conforming usb-ports, they will provide the pow=

er=20

needed (and spec'ed in the standard).

Actually most laptops tend to supply more then the max of the spec. The rea=

son=20

behind this is that many external hdds need more then standard power and th=

us=20

use two connectors. But on laptops both of these would be on the same power-

supply anyway and physical ports are notoriously short. So they provide mor=

e=20

power and make most hdds happy when connected with just one connector.
Have fun,
Arnold
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