You know how the Lightning cable that plugs into your iDevice has a USB plug on the other end? That’s because the Lightning port is a kind of fancy USB port itself. You already know that you can in plug a keyboard, or an audio interface, or a camera, using Apple’s Lightning to USB Camera Adapter. But did you know that you can plug in all of those at once? That’s right — by using a powered USB hub, you can hook up as many accessories as you like to your iPad at once. If you ever use your iPad to work at your desk, with a keyboard, then you can use this tip to build your own iPad docking station.