The SD Association announced two new high-speed performance symbols for the fastest SDXC and SDHC devices and memory cards.

According to the statement, the first symbol (UHS) identifies products with bus-interface speeds up to 104 Megabytes per second for greater device performance. The second symbol (UHS Speed Class) identifies SD memory cards and products with a performance option allowing real-time video recording.

The new Ultra High Speed (UHS) symbol can be found exclusively on SDXC and SDHC products. SDXC or SDHC products with the UHS-I symbol offer the fastest bus-interface speeds available today, capable of supporting data transfer speeds up to 104 Megabytes per second. UHS-I quadruples the existing maximum possible speed of 25 Megabytes per second. UHS bus interfaces are backwards compatible. SDXC UHS-I and SDHC UHS-I memory cards achieve greatest performance when paired with a UHS-I device and allow consumers to record HD resolution videos, plus perform other simultaneous recording functions.

The new UHS Speed Class symbol can be found exclusively on SDXC UHS-I and SDHC UHS-I products. UHS Speed Class 1 designates SD memory cards and products with a performance option designed to support real-time video recording. This symbol will be found on SDXC UHS-I or SDHC UHS-I memory cards. Consumers can realize the full potential of recording real-time broadcasts and capturing videos using a digital video camera by pairing their devices with UHS Speed Class 1 memory cards.

The existing Speed Class symbols for non-UHS SD, SDHC and SDXC products are Class 2, Class 4, Class 6 and Class 10. They refer to the minimum write speed performance of the memory card. The symbols may be found on memory cards and devices, including video and digital cameras.

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For more information visit: www.sdcard.org