Transferring photos is as simple as plugging the flash drive into a computer and copying over your chosen images, before ejecting it and inserting it into the frame. A number of older and more affordable digital photo frames also feature a USB port. it is allows you to display photos stored on a USB flash drive. Images will usually load automatically, though you might have to manually select the drive as a source on certain frames. Most frames with a USB port will have file browsing software, enabling you to scroll through folders and images stored on the flash drive. Again, it’s worth confirming which image formats are supported – and you might need to reformat the flash drive before the digital photo frame will recognize it.