Save your money and your A701. This thing has only a standard micro-usb plug-in. Check the connector of your Acer charger ... look really close and for better comparison hold a micro-usb-connector from a standard cable next to it. The connector from Acer is longer .. why? because the first row of pins that you can see are not the same ones that fit in a micro-usb-jack. Look deeper into the connector from Acer and you will see a second row of pins.
So if you use this charger with the adapter from that site and set a higer voltage you might fry the usb from your tablet. Sorry to disapoint you but better now than later with a broken tablet.
Thanks Pal. So no any chance for a charger or dock with UBS to not only charge but also for host mouse or keyboard?
BR
Gregork