If you want to transfer photos from your iPhone to a USB flash drive, there are a few different ways to go about it. One option is to use the Photos app on your iPhone. Open the Photos app and select the photos you want to transfer. Tap on the “Share” button in the bottom left corner of the screen and select “Copy to USB Flash Drive.” You can also use iTunes on your computer. Open iTunes and connect your iPhone to your computer. Click on the “Photos” tab and select all of the photos you want to transfer. Click on the “Share” button in the bottom left corner of the screen and select “Copy to USB Flash Drive.” The last option is to use an external hard drive that is compatible with USB flash drives. Plug in your USB flash drive into an open port on your computer and plug in your iPhone into another open port on your computer. Launch iTunes and click on the “Photos” tab. Select all of the photos you want to transfer and click on the “Share” button in the bottom left corner of iTunes screen and select “Copy To USB Flash Drive." ..