PNY's Elite Performance SDXC (Secure Digital Extended Capacity) cards are the latest high speed flash memory cards from PNY. They are rated Class 10 and feature a Ultra High Speed (UHS-1/ U3) data bus for incredible transfer rates with read speeds up to 95 MB/s. These cards are compatible with SDXC host devices ranging from the latest hi-megapixel cameras and HD camcorders to hi-end DSLRs and laptops.