With one USB port and two memory (SD/TF) card port. * Can easily transfer photos from your digital camera to your Tab for viewing or sharing. * You can also transfer songs or videos from your SD/TF device to your Tab"s internal storage to access them whenever you like. * The USB port can connect to Digital Camera, USB Mouse, USB Flash Disk (the format must be FAT32, cannot read NTFS), and it also supports External keyboards input. * Compatible with: Samsung GALAXY TAB P7500/P7510/P7300/P7310