SD 6.0: UHS-I cards with double speed transfer, new cards for smartphone and a standard low-voltage

[Cord]

SD Association, an entity that deals with standardization SD storage units announced final specifications for SD 6.0 protocol, which will bring new cards UHS-III at speeds two times higher than UHS-II models. With SD 6.0 and we have been disclosed cards from the "Application Performance Class" A2 dedicated to smartphones.

 

 

UHS-III standard will provide the opportunity to develop SD memory cards that Opat reach speeds of reading and / or writing to 624 MB / s (full duplex). In comparison, the standard UHS-I offers speeds between 50 and 104 MB / s, while the UHS-II provides 156 MB / s full duplex or 312 MB / s half duplex. Fortunately, those who already have UHS-II devices can use the new memory cards, since the interface has not changed. Of course, the transfer speed UHS-II devices will not be higher than before. At the same time slot UHS-III will be compatible with all previous generations of SD cards. The theoretical maximum capacity to 2 TB still remains, a value that has not yet been reached.

 

 

 

The cards UHS-III seem to be made for mobile devices such as laptops and cameras, but the cards from the "Application Performance" are dedicated to smartphones. Last year, the SD Association presented A1 standard, which ensures high performance in applications stored on the card, and now with the introduction of the protocol SD 6.0 (which includes and UHS-III), comes a superior alternative: A2. While sequential transfer speed does not increase its generation A1 remaining to 10MB / s, for a card to be included in this class must be able to keep a large number of operations per second. Read cards must ensure A2 4000 IOPS while writing should provide 2000 IOPS performance.