It was since at least the iPhone 4. I still have the old digital AV connector from before they switched to lightning. It came with a hdmi port and a usb port. Y

It was since at least the iPhone 4. I still have the old digital AV connector from before they switched to lightning. It came with a hdmi port and a usb port. You could plug an SD card reader into the usb port and use it as an external HDD for transferring files.