The original adapter from Apple has indeed compared to other adapters have the disadvantage that it is somewhat more expensive than Apple product and compared to other products and USB card reader with two connectors covers. But I have no problems with reading large amounts of data. Our vacation photos were on the different cameras of my family. After delivery of the iPad and the connector I tested the same function. The data were all recognized and without problems and Abrüche who always reads with other manufacturers, eigelesen. On a map were more than 1,000 photos and videos. All were read quickly and could be considered without any problem on the iPad. Cameras: Canon and Pentax. So the photos were identical demonstrated and were automatically transferred to our NAS server in Hintergrung about iCloud, Photo Stream and coupling. The adapters are securely on the device and do not wobble. The overspending have here paid off for me and already earned the Adapter his money.