Thanks to the shift to Lightning connectors, iPads are now split between the world of 30-pin and Lightning accessories and charging cables. Apple sells two versions of 30-pin-to-Lightning adapters ($39 each): one a tiny plug, the other a longer cable. Both can be used for charging, syncing, and data transfer like SD card camera importing, but not for video output. Third parties are selling less-expensive options on sites on Amazon, thankfully, because $40 is a lot to pay for a dongle...but we haven't vetted those out here yet. You only need one of these if you have older iPad accessories you don't won't to part with. For many others, getting a Lightning-to-Micro-USB adapter ($19) might make a lot more sense.