No matter how much storage you spring for in your iPhone or iPad, there’s always use for more. The unfortunate thing about mobile devices is that they’re not exactly easy to upgrade, and you certainly can’t swap out the hard drive for a bigger one. Something you can do though is plug in something like the iKlips miReader 4K, which expands capacity and adds new connection options all at once. With its Lightning connector and micro USB connectors, and a micro SD slot, you can massively expand capacity and share files between a variety of devices, whether Mac, Windows, even cloud drives. And right now you can get an iKlips miReader 4K for just $46.99 at Cult of Mac Deals.