The picture shows UHS-I class U3, but the description and title say U1. Which one is it now? Also, the same image is used as the 20 franc more expensive product (where UHS-1 U3 is also in the title and description): https://www.digitec.ch/de/s1/product/sandisk-extreme-microsd-a2-microsdxc-1000-gb-u3-uhs-i-speicherkarte-11060272