This 32GB SanDisk Extreme micro SDHC card combines high performance with lightning-fast transfer speeds. In short: the perfect memory card for your action camera! The high read- and write-speed means the buffer of your camera is cleared quicker, allowing you to be ready for your next adventure faster. Let's face it: we wouldn't want to miss out because of a slow card. The classification for this card has also been raised to U3 as this card is now even more capable of handling Full-HD recordings. In fact, 4K Ultra-HD is not a problem!