Since the storage capacity of smartphones has increased to where 64 GB has become the de facto base model alternative in the high-end segment, more and more smartphone manufacturers have chosen to avoid the inclusion of expandable storage. However, there are still companies offering phones with microSD card slots, giving users the freedom to expand the memory of the devices to the heart content. Or at least to the limits of what is possible with consumer quality flash memory at this point.
When talking about "boundaries", you can't push them much further than with the PNY's Elite 512GB microSD card. This is pretty much the biggest microSD card you can buy right now, it doesn't come very cheap. PNY Elite 51
If you notice this for your smartphone or tablet, make sure your device is compatible with microSD cards of this capacity before you pull the trigger. PNY's Elite microSD card is a class 10 device with a transfer rate capacity of up to 90 MB / s, which also makes it a great option for your camera.
The deal is good through today, with 15 hours left on the clock as of the writing of this article.