I bought a few USB hubs with short male connectors on eBay, so thought I'd report on them.
This one works pretty well. It's a little too thick but not enough to cause a problem. It can be turned both ways, to get it out of the way of the ports on one side or the other. I got it here (shipped from UK), but there seem to be other sellers shipping from China with the same thing.
This one is the wrong shape because Pandora's USB port is upside down.
This one is clearly not as good as the first. It blocks both sides when unfolded, and is too thick when folded. It doesn't turn completely to one of the sides. Plugging the mouse into the end of a wing rather than opposite the male connecter crashes the USB.
This one is not a hub. I didn't really expect it to be, but it's a pity because this one has the best shape
This one works pretty well. It's a little too thick but not enough to cause a problem. It can be turned both ways, to get it out of the way of the ports on one side or the other. I got it here (shipped from UK), but there seem to be other sellers shipping from China with the same thing.
This one is the wrong shape because Pandora's USB port is upside down.
This one is clearly not as good as the first. It blocks both sides when unfolded, and is too thick when folded. It doesn't turn completely to one of the sides. Plugging the mouse into the end of a wing rather than opposite the male connecter crashes the USB.
This one is not a hub. I didn't really expect it to be, but it's a pity because this one has the best shape