UHS- 1 means supporting UHS (ultra-high-speed) interface, and the bandwidth reaches 1 04mb/s, 2010/year. In June, SD card association issued two performance labels, namely UHS-I and UHS speed grade1. Based on the bandwidth of 104Mb/s, if the performance of the memory card can meet the standard of real-time storage of high-definition video, it can be labeled as "UHS speed level 1".

The access speed of U3 standard memory card has greatly jumped, and the highest reading speed can reach 90MB/s per second, which is 9 times the speed of standard class 10 memory card.

Extended data

SD memory card is a new generation of high-speed storage equipment based on semiconductor flash memory. The technology of SD memory card is developed from MMC (multimedia card) format, and SDIO( SD input/output) card is developed on the basis of compatible SD memory card. This compatibility includes machinery, electronics, power, signals and software. SD and SDIO cards are usually called SD memory cards.

Baidu encyclopedia -SD card

Baidu encyclopedia -uhs- 1