This device is designed for work with SD & SDHC cards security features. It allows to read SD card CID number, lock and unlock SD card with password and set/remove write protection.
SD card locked with password is protected from any access to SD card data. Card must be unlocked first, to access data on it. When such SD card is inserted to the PC card reader, it is not detected by system at all and no read/write or any other functions are allowed.
SD card write protection feature is used to protect card from modifying its contents. When such protection is set, SD card inserted in PC reader is read only and can't be formatted, erased or any new data written.
*This device doesn't change CID number and doesn't extract unknown SD card passwords