You can never have too many memory cards! These Stealth Cam Micro SD cards work for all Micro SD action cameras and are very high quality. Class 10 cards are capable of recording full HD video and continuous HD still images. Having extra cards eliminates the need to playback video in the field, using up precious battery life. Simply pull the existing card, replace with another and view the contents at your leisure on your computer at home. Stealth Cam recommend at least two cards for every action camera you have, so you can swap the card in the camera for a fresh one quickly and get back to capturing the action.FeaturesCompatible with most digital and action camerasUpload data, erase and reuse without loss of qualityIncludes an adapter to fit in a standard SD card slotClass 10 memory cards feature a minimum data transmission speed of 10 MB per second for super-fast image/video capture and playback