Well, I'm just including here just part of what you can do to your Toshiba e740 cradle. If you like to add a relay to this design so you can use your power supply and your USB as a power supply at anytime you like or you just want to add an USB Multiport to your Cradle, then you should visit this wonderful page where all these projects are very well explained.  Thanks to jmbneaf  for this collaboration. 

All you have to do is open your cradle and  run two single jumper wires between those points marked in the picture with the red and black lines (each line means a single wire between those points).

Just remember that with this modification you don't want to connect the external power supply to the cradle. It's strongly suggested "blocking" off the cradle's adapter with tape or other means to keep from using it after being modified.

You can find more information about this topic, including some interesting ideas about to use relays that will allow users to keep the cradle with both power inputs at this forum.

Warning: This page is not responsible for any damage, mis-configuration or lose of data  in your PDA due to the use of the information, tips and/or tricks provided here. 

 

How to modify the e740 cradle to power the e740 via USB.

 

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