According to my rough guess on the card USB flash drive: First of all, functionally speaking, based on the characteristics of the fingerprint card USB flash drive, any surface that has been in contact with the finger may extract the corresponding biological information, and this information is not available for life. When reset, fingerprint authentication is not safe.
Then, it is technically achievable, but due to the integration of an imaging module and an information analysis module (CPU), its additional size is difficult to be accepted by a card-type U disk-unless you are willing to carry a mobile phone with you. USB flash drive. Perhaps with the development of technology, this volume will become smaller and smaller.
Finally, from the cost point of view, this is related to the value of the protected object, which is hard to say.
Because the SD card/TF card is placed on the device for a long time, especially the mobile phone, the number of erasing and writing is actually very high, so it is not surprising that it will break after a few years.
Few people have used USB flash drives as their main storage medium for a long time. Generally, USB flash drives are used to transfer files. Therefore, the actual frequency of use of USB flash drives is very low, and the probability of USB flash drives being damaged is very low.
For U disks, the most common fault is that the main control chip of the U disk is burnt out, which is caused by frequent plugging and unplugging.
In a special environment to do a stress test, it is normal to write and discard a USB flash drive a week, if it is a frequent plug-in test, a USB flash drive may be discarded a day.
It’s totally ok. The essence is flash storage. However, ordinary SD cards are not as fast as U disks, and some high-speed cards. Another point is that the U port is relatively common. I have never seen a desktop computer with an SD card slot. Usually All use SD card readers. If the card U disk reader is not well done, the high-speed card will not be able to perform. The specifics still depend on the application scenario.