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It depends on how large the flash drive is, and how large the files are.

Take the size of the flash drive in GB, divide by the average size of the files in MB, and multiply by 1000.

So for example if you are storing photographs that are 2 MB in size on an 8 GB flash drive, you could store approximately 8 / 2 x 1000 = 4000 photos

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It also depends on the file structure in use. Most flash drives come pre-formatted with either FAT32 or exFAT - although most of them can be re-formatted to use other file structures. Both FAT32 and exFAT allow some flexibility in the size of the clusters used. Since storage is allocated by cluster - with enough clusters allocated to accommodate each file, the maximum number of files is also limited to the number of clusters.

As an example, theoretically if you had an 8 TB flash drive (wouldn't that be sweet) formatted with FAT32 using 32 KB clusters the maximum number of files would be 268,173,300. For smaller total capacity and/or larger cluster size, the number of files will diminish proportionately.

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7y ago
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12y ago

A flash drive can hold data forever as long as you don't delete it off the drive.

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Q: How long can a flash drive hold data?
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