What are UHS interface and UHS Speed Class? Categoría : Specification / Capacity / Performance UHS (Ultra High Speed), the fastest performance category available today, defines bus-interface speeds of up to 312 Megabytes per second. It is exclusively designed for SDHC and SDXC memory cards, and compatible with SDHC and SDXC devices. Is the answer helpful? Relacionado Why is the actual storage capacity of the product slightly less than the volume specified on the product's package? How come the files in my memory card are corrupted? Why do I need to format the memory card before using it for the first time? Soporte Técnico If the answer can't help you, you can contact the Tech Support Department Empezar