Monster Digital Sport Series SD cards are purpose built for action sports cameras and high speed recording. In the same way the average camera can"t cut it, neither can the average SD card. As experts in memory design we set out to make a card that can keep up with you and optimize your ULTRA HD camera. From huge drops to temperature extremes and of course water, no matter how rough it gets our cards will flawlessly store all the HD video and high speed photography of your epic day. These cards are ultra high speed UHS-1 rated and have a blazing fast speed of up to 90MB/s and 45MB/sec write speeds. That means you can capture and remove your HD videos and images off the card as fast as possible and get back out filming more fantastic heart dropping footage.