SD ASSOCIATION DOUBLES BUS INTERFACE SPEEDS WITH UHS-III
624 MB/sec transfer rate makes quick work of high-quality camera images,
360-degree, virtual reality and 4K and 8K video applications
Pacifico Yokohama, Japan — CP+ Camera and Photo Imaging Show Booth # G-16 —Feb. 22, 2017 — The SD Association announced today UHS-III, doubling the fastest
SD memory card transfer rate up to 624 megabytes per second (MB/s). UHS-III fasterspeeds help move large amounts of data generated by data-intense Gbps wirelesscommunication, 360-degree cameras, drones, 3D, 4K and 8K videos recorded onSDXC and SDHC memory cards.
Immense storage capacities introduced with SDXC memory cards give users the ability
to take more pictures and make unique video features on the latest imaging devices.
Fast UHS bus interfaces help users manage that content more quickly. Since it is fully
backwards compatible, devices offering UHS-III bus interface will accept the billions ofexisting SD memory cards in the market today.
“SD memory card capabilities continue to expand, paving the way for new and highly
anticipated imaging and video features, from virtual reality to 8K video,” said Brian
Kumagai, SDA president. “The SDA remains committed to supporting innovation byconsumer electronics manufacturers and to delivering the same performance andinteroperability consumers and professional users love about SD memory cards.”
The SDA released a visual mark to denote UHS-III SD memory cards for easy
matching with devices’ recommendation for the best SD memory card for optimal
performance.
SDXC UHS-III card example:

UHS Bus Interface
The UHS-III high-speed interface signals are assigned to the second row of SD
memory card pins introduced with UHS-II. This newest bus transfer speed option will beavailable in full-size SDHC and SDXC cards, as well as microSDHC and microSDXCcards. It does not change the physical size or shape of the cards as the move fromUHS-II to UHS-III involves only a PHY change, allowing relatively easy and fast
upgrades of existing UHS-II products to UHS-III.
Both UHS-I and UHS-II make the robust storage specified for SDHC and SDXC
manageable and even more portable. Ultra High Speed was announced in June 2010
with UHS-I delivering top bus-interface speeds of 104 MB/sec, which was tripled to 312
MB/sec in UHS-II. UHS bus interfaces are backwards compatible and are exclusive toSDXC and SDHC products. All UHS-equipped memory cards achieve greatest
performance when paired with corresponding UHS devices. SDXC and SDHC UHS-I
and UHS-II products are already in retail outlets around the world and supported byleading camera manufacturers. You can read more about UHS on our website.
Find the SD Association at CP+ Camera and Photo Imaging Show in Booth G-16,February 23-26, 2017, in Pacifico Yokohama, Japan.
SD Association
The SD Association is a global ecosystem of nearly 900 technology companies charged
with setting interoperable SD standards. The Association encourages the developmentof consumer electronic, wireless communication, digital imaging and networking
products that utilize market-leading SD technology. The SD standard is the number one
choice for consumers and has earned more than 80 percent of the memory card market
with its reliable interoperability and its easy-to-use format. Today, smart phones, tablets,
Blu-ray players, HDTVs, audio players, automotive multimedia systems, handheld PCs,
digital cameras and digital video cameras feature SD interoperability. For more
information about SDA or to join, please visit the Association’s website,
https://www.sdcard.org.
SD Logos are trademarks licensed by SD-3C LLC.
###Media Contact
Alisa Pfeil
SD Association
1.925.275.6670
media@sdcard.org