Toshiba has announced the Exceria and Exceria Pro ranges of SD cards - the first to conform to the UHS-II standard and the fastest SD cards yet announced. The Exceria Pro cards will be available in 16GB and 32GB sizes from October 2013 and will offer read/write speeds of 260MB/s and 240MB/s respectively. 32GB and 64GB Exceria series cards offering the same read speeds but half the write speed will follow a month later.

The UHS-II standard increases the maximum possible write speed for SD cards to 312MB/s, when used with compatible devices, compared with the 104MB/s maximum offered by UHS-I cards.

Press Release:

Toshiba Unveils New SD Memory Cards Offering World-Fastest Write Speed

TOKYO—Toshiba Corporation (TOKYO: 6502) today announced that it will launch a new series of SD memory cards offering the world's fastest data write speed. The latest edition to its line-up of EXCERIA memory cards designed to offer users of high-end digital cameras an excellent experience, the EXCERIA PRO1 and EXCERIA1 cards will be launched in major markets worldwide, starting with Japan in October.

EXCERIA cards compliant with UHS-II will be available in two series. The EXCERIA PRO series will offer photographers a data write speed of 240MB/sec2 the world's fastest3, while the EXCERIA series will write at 120MB/sec. They will allow digital camera users to shoot still images continuously at high speed.

The cards are the first in the EXCERIA line-up to integrate a newly developed controller compliant with UHS-II4 the ultra high speed serial bus interface defined in SD Memory Card Standard Ver. 4.10, and they achieve significantly higher data transfer speeds than earlier UHS-I compliant cards5.

While digital cameras have made huge strides in image quality and versatility, users have long wanted to see improvements in data transfer rates and write times, so as to be able to takes bursts of photographs in quick succession. This demand has grown increasingly strong as high performance digital single-lens reflex cameras and mirrorless interchangeable-lens cameras have gained popularity and moved into the mainstream. Further advances in higher resolution image recording (including 4K2K video), will also fuel demand for transfers of data-rich images at high speed.

Looking to the future, Toshiba, a world leader in the NAND flash memory business, will continue to meet market demands by enhancing its line-up of UHS-II compliant SD memory cards.


  1. EXCERIA PROTM and EXCERIATM are trademarks of Toshiba Corporation.
  2. Maximum data writing speed may vary depending on the host device and file size. As of July 2013
  3. UHS-II is the ultra high speed serial bus interface in SD Memory Card Standard Ver4.10 that delivers data at 156MB/s by single lane access and 312MB/s by dual lane access.
  4. EXCERIA Type 1 SD-GU032G1 (32GB)
  5. Read Speed: 95MB/s, Write Speed: 90MB/s

Outline of New SD Memory Cards

1. UHS-II Compliant EXCERIA PRO Card

Product Name  Capacity  Maximum Transfer Speed  Price  Start of Sales
Read Write
THNSX016GAABM3  16GB  260MB/s  240MB/s  Open  October 2013
THNSX032GAABM4  32GB  260MB/s  240MB/s  Open  October 2013

2. UHS-II Compliant EXCERIA Cards

Product Name  Capacity  Maximum Transfer
Price  Start of Sales
Read White
THNSX032GAB4M3  32GB  260MB/s  120MB/s  Open  November 2013
THNSX064GAB4M4  64GB  260MB/s  120MB/s  Open  November 2013

Note: Product names above are for the Japanese market.