New SDXC and SDHC memory cards with U3 symbol to support 4K2K video

The SD Association today announced a new high-performance option and symbol specifically designed to support a wide array of 4K2K television and video products. A new Ultra High Speed (UHS) Speed Class 3 (U3) symbol will indicate products capable of recording 4K2K video and will operate exclusively on SDXC UHS-I and UHS-II memory cards and devices and SDHC UHS-I and UHS-II memory cards and devices. The UHS Speed Class 3 defines a sizzling fast 30 Megabytes per second constant minimum write speed to ensure high-quality video recordings. This means 4K2K video, live broadcasts and content can be recorded on high-performance cameras such as Digital Single Lens Reflex (D-SLR), Digital Single Lens Mirrorless (D-SLM), camcorders and video cameras and then played back smoothly.


Consumers will benefit from a single card that is capable of meeting all of their video, photo, music, document and data storage needs. New devices offering the UHS Speed Class 3 will be backwards compatible and will work with existing SD memory cards. The SD Association continually meets the challenge of providing a comprehensive menu of standards to meet the needs of a wide variety of devices with different capabilities. Selected features are marked with performance symbols that appear on products to help users identify feature functionality.