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New 4K2K class SD card announced

A new class of SD card has been announced with write speeds of 30MB per second minimum. The new cards are aimed at the emerging 4K video market.


The SD association has just announced a new class of SD-card, aimed at 4K2K television and video products. The Ultra High Speed (UHS) Class 3 (U3) card will be able to record 4K2K video and will be available in SDXC, and SDHC UHS-I and UHS-II formats. “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 (DSLM), camcorders and video cameras and then played back smoothly,” said the SD association in a statement.

“Our new UHS Speed Class 3 standard will give consumers and businesses more flexibility and capability as the market shifts to 4K2K video formats,” said Brian Kumagai, president of the SD Association. The new U3 cars will be capable of a minimum write speed of 30MB per second. For comparison the slightly slower U1 card has a minimum writing speed of 10MB per second. And yes, new devices which allow for the UHS cards will be backwards compatible and work will all previous SD cards as well.


The SD association, for clarification, does not produce or manufacture products. They are a group founded by Panasonic, SanDisk and Toshiba in 2000 and exists to coordinate standards in SD card technology so they can be used in multiple markets and with several different products.

Source: SDcard.org

David F.
A grad student in experimental physics, David is fascinated by science, space and technology. When not buried in lecture books, he enjoys movies, gaming and mountainbiking

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