"UHS-1" or more accurately "UHS-I" stands for "Ultra High Speed" - 1 and is a speed class for SDHC and SXDC memory cards.
UHS-I has a bus interface speed of up to 104 MB/s.
An SDHC UHS-I card will work in any SDHC compatible device at lower speeds, but to take advantage of the UHS-I speed, a UHS-I compatible device is essential.
An SDXC UHS-I card will work in any SDXC compatible device at lower speeds, but to take advantage of the UHS-I speed, a UHS-I compatible device is essential.
UHS-I compatible cards and devices are normally marked with the symbol below ,"UHS-I" or "I"
A speed class is also defined.
= Class 1 ."UHS Class 1"
This is the SDHC UHS-I Class 1 logo.
This is the SDXC UHS-I Class 1 logo.
Integral offer a wide selection of SDHC and SDXC cards with a UHS-I U1 and UHS-I U3 interface.
UHS-II interface cards are now also available from Integral for the very latest digital cameras.