USB hub as to connect some extra device

[JasperBrown]

Active power adapters are nice but than you need two of them to get the speed of 2 USB ports..
and this means two external power adapter...

If I only need 4 ports, it is also possible to use a 2 port hub.

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http://www.ebay.de/itm/112029314857?_trk...EBIDX%3AIT