PNY launches X-PRO 90 UHS-II SD card
A digital camera without a storage card is like a car without gas -- pretty much useless. You need a memory card to store the photos and videos you take, and most cameras don't come with any onboard storage these days.
There are no shortage of SD cards (Amazon is littered with them), but you should always make sure you are purchasing one made by a reputable company. Don't recognize the brand? Don't buy it. You don't want to lose your valuable data when that cheap card dies prematurely.