64GB SDXC card compatible with UHS-I, enabling high-speed data transfer with Class 10. - Brand: I-O DATA - Model: EX-SDU1/64G - Capacity: 64GB - Type: SDXC - Speed Class: Class 10 - UHS Speed Class: UHS-I Thank you for viewing. I purchased this from Amazon about 2-3 months ago, but I no longer need it, so I'm selling it. Thank you very much. (*^_^*)\ #mog_new_shop