[M] Toshiba Exceria Pro N502 SD Card Review
 

The Exceria Pro N502 has easily got to the first place in terms of performance versus the previously tested cards; the latest UHS-II standard does make possible up to 8K video recording and the safe operating conditions vary from -20 to 85 degrees Celsius (without condensation). As we have seen with other Toshiba products, the N502 is x-ray proof, so you do not have to worry about scans at the airport security checkpoints.

http://www.madshrimps.be/articles/article/1001103/