Meet the SanDisk Ultra Dual USB 3.0: a tiny flash drive that lets you transfer files between OTG-enabled Android devices, PC, and Mac computers. Just connect it to the micro-USB port of your Android device, and you are set. The device lets you transfer files at up to 130 MB/s.
The flash drive has a micro-USB connector on one end and a USB 3.0 connector on the other. It will be available at capacities up to 64 GB.