USB Extenders

Soldato
Joined
8 Dec 2004
Posts
15,060
Location
Hampshire
So I would like to extend my iPhone 3GS docking station, can I use a USB extender? Or is there some disadvantage?
Also same for my Sony PSP.

Thanks!
 
No disadvantage other than having all that extra lead to hide somewhere. You can only extend USB leads so far before they wont work.
 
anything past 5 meters and it can make your devices not work properly (loss of signal i expect)

It's actually for signal timing, USB times out if a response isn't received in a given period and over 5m the timings become tight for signal propagation, cable delays are in the region of 25ns, which is roughly that of 5M of copper in USB 2.0's spec.

Well worth reading the Advanced Black Magic, very long book on the subject!
 
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