What is SDXC card?
By Caryl Damokosh 2020-01-18 214 22
This SDXC memory card uses a NAND flash memory chip and uses Microsoft's exFAT file system (vista's new file system). It is said that the SDXC 1.0 specification will be officially released later this quarter.
Characteristics and technical specifications
(1) the current maximum capacity of the SDXC memory card can reach 64GB. The theoretical capacity is that 2TB
(2) supports UHS 104, a new ultra-high speed SD interface specification and the highest standard of the new SD memory card standard Ver.3.00. It realizes the bus transmission speed of 104MB per second on the SD interface, thus achieving the maximum write speed of 35MB per second and the maximum read speed of 60MB per second.
(3) UHS104 provides a traditional SD interface-3.3V DS (25MHz) / HS (50MHz). The new SDHC memory card supporting UHS104 is compatible with existing SDHC counterparts. The
(4) SDXC memory card is only compatible with SDXC counterparts with exFAT file systems. It cannot be used for SD or SDHC counterparts.
(5) adopt the most reliable CPRM copyright protection technology.
(6) UHS104 is a new ultra-high speed interface specification, and the data bus transmission rate is 104MB per second. This is the highest standard of SD's new memory card standard Ver.3.00.
(7) SDXC memory card is the next generation SD memory card standard defined by SD Association in April 2009, which provides faster data transfer rate for rich storage applications to meet the growing demand for high-capacity storage media. Compared with the SDHC memory card standard that provides 4GB to 32GB capacity, the new SDHC memory card standard can achieve a capacity of more than 32GB and up to 2TB (TB:terabyte, terabytes, 1TB=1024GB).
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