Does such a thing exist. I have a device that only has a slot to write data to a micro sd card. I have an external USB hard drive. Is it possible to hook up my external hard drive to the micro sd slot in my device? Like a male USB cable into the external hard drive that has a male micro sd connector on the other side to hook into the device. If it does can anyone tell me the name of this type of cable so I can search for one.