According to Apple, the Apple iPad Camera Connection Kit supports “standard photo formats, including JPEG and RAW, along with SD and HD video formats, including H.264 and MPEG-4.” This connection kit is compatible with iPad Generations 1 –3 (using the 30-pin connector).
The kit consists of two adapters, the Camera Connector USB interface (plug it into the dock connector port on your iPad, then attach your digital camera or iPhone using a USB cable); and the SD Card Reader (import photos and videos directly from your camera’s SD card, connect it to your iPad, then insert your digital camera’s SD card into the slot).
I have both adapters and the original packaging in my collection.