Sorry if this in the wrong place, but I'm not sure where else to post, and I'm not sure where to look, either.

Basically, I want to solder 2 female USB-A ports to a single micro USB-B plug, so that 2 devices (such as a keyboard and mouse) can be plugged in simultaneously. Is this a straight-forward process or does this require a whole interface to be built?

Reason for this is that I would like to plug those into my android device, but currently I can only plug in 1 device at a time.

Any replies will be appreciated.


This requires at minimum, a USB hub. USB's architecture doesn't allow for the line to be split electrically like that by just connecting two sockets to a single plug.

For your use case, you might be able to just use a regular USB hub (with appropriate connector cable) to connect multiple USB devices to your android device. I don't know if there is a limitation on the android device on if it can support hubs when it is in host mode, that's something you'd want to look into.

And there's a stack exchange website for electronic engineering, which might be a great place for this type of question.

  • Havent seen that site before, thanks. Will look into it – aggregate1166877 Jul 6 '12 at 14:18

This would not work, what you need is a USB hub. Two USB devices on a single header without a hub is not a supported configuration within the USB standard and just plain wouldn't work.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.