QUMOX 64GB SD XC GB SDXC 64GB Class 10 UHS-I 64GB Secure Digital Memory Card Write Speed HighSpeed 40MB / s read speed upto 80MB / s (Electronics)
For a very competitive price, it was a card at incredible speeds. To find identical flow rates must move toward the high end. For the moment the card has reliable air, to do over time. Anyway no problem detected.