1.Why available disk space is less than the identified value?
Because the USB Flash Disk utility shares some of space, and some of space is used as exchange area to enhance writing and reading speed.
2. When I unplug the USB Flash Disk after the computer indicates accomplishment of copy process, it prompts that files have not been copied completely yet, Why?
Since the operating system provides buffer space for data storage, the rate of progress does not equal to the real accomplishment of data copy. User should notice the LED indicator. If it is still fast flashing, you cannot unplug the USB Flash Disk. When you confirm it is not fast flashing in a certain period (2 seconds usually), then you can unplug it.
3. Why can't I copy large files to my USB flash drive?
Your USB flash drive is most likely using the Fat32 file system. Drives using Fat32 have a 4GB limit on file size. If you are consistently working with files larger than 4GB, it is recommended to format your USB flash drives using exFAT or NTFS file format which doesn't have the 4GB limit.
4. What's the difference between USB 2.0 and USB 3.0?
The most important difference between USB 2.0 and USB 3.0 is the data transfer rate. USB 2.0 settles at 480 megabits per second (Mbps), while USB 3.0 transfers at a much faster rate of 4,800 Mbps. USB 3.0 also has a larger bandwidth than USB 2.0. Furthermore, they differ visually; USB 2.0 has either a black or white connector inside the USB port, while USB 3.0 has a blue connector.
5. What's the difference between USB and USB-C?
USB and USB-C flash drives differ physically in shape. While USB flash drives have rectangular ports, USB-C flash drives have flat, thin, oval ports. The normal USB drive does not have a reversible plug but USB-C is designed to be reversible making connectivity easier. USB-C flash drives allow faster data transfer since they make use of USB 3.1 Gen 2 connectors which have a transfer speed of 10Gbps, 20x faster than USB 2.0. Moreover, USB-C drives can be plugged directly into your phones or any mobile devices with USB-C ports, without the need for adapters.
6. What are the file formats supported by USB flash drives?
The file systems supported by USB flash drives depend on the operating system. Windows use Fat32, exFat, and NTFS file systems for USB flash drives. For Mac OS, the file formats are HFS+, APFS, and exFAT. While Linux is using EXT file format. Have some questions that we didn't answer here? After 15+ years of dealing with USB flash drives, there's a good chance we can help. Post your question on our subreddit and we'll get back to you ASAP.
