A:Answer Sorry to sound indefinite, but the answer to question is "it depends"....on the data size of each photo file and the photo data size depends on the density of the pixels/inch, etc. Size of file can vary greatly as the density (pixels per inch) increases or decreases. Older digital cameras settings could yield an image, for example, of fairly good quality (for the time) using roughly 5 megs so the math would suggest the flash could hold about 25,000 of such images....more images than that if average data size smaller, fewer if bigger. My phone pix typically run between 4 and 8 megs each. Another consideration...video shots use up memory much more quickly----a 45 second video can eat up 100 megs. "Your actual mileage may vary."
For this buyer, the motivation for this product was its ability to hold a considerable volume of files of large size in a highly portable, mailable device.