I bought the SDXC card for mine. It recommends it. So far no problems. I did some research on the Samsung website, plus downloaded the manual for it there in PDF form
When it comes to evaluating SD cards in terms of speed, the most important thing to look at is the "Class" of the card as labeled by the manufacturer. These are numerical values, indicated within a small circle, in which higher is better: Class 10 is the fastest, with Class 8 being slower, down to Class 2 which is the slowest. However, high-end cards can also use the "Ultra High Speed" or UHS-I standard, which is shown as a "1" within a "U" shape. So look for SD Cards that are Class 10 UHS-I models to ensure the fastest speeds possible. You will need a card with lots of storage space for shooting video. The best you can get is the Toshiba 32GB 32G SD SDHC EXCERIA Type 2 Class 10 Memory Card. Another good choice is the SanDisk Extreme 32 GB SDHC Class 10 UHS-1 Flash Memory Card 80MB/s (SDSDXS-032G-AFFP) that has lot of storage space.