Cards include security feature for protection of copyrighted data</br>Fully compatible with all SDXC compliant devices</br>Speed performance rating: Class 4 (based on SD 2.0 Specification)</br>Writeable label for easy identification and organization</br>High quality and reliability backed by a 5-year limited warranty</br>Durability tested to protect your memories from life's mishaps - water proof?? shock proof?? x-ray proof?? temperature proof</br><br/>http://www.amazon.com/gp/product/B00CXI1EI4