The Duracell Flash Pro Photo SD cards optimize recording performance to ensure that you capture more hi-resolution digital images. The speed capabilities of these cards are optimised for photo & won&8242;t provide any tangible benefit on other devices. Perfect for the newest Digital HD Video Recorders & SLR Cameras Finest SLC Memory & Controllers for years of reliable use in the most demanding conditions 200x Allows read speeds up to 30MB/s