My Cloud is a Nas that you can hook up to any router to back-up, upload, download and even stream file wireless over the internet. This means that you can back up multiple device to this storage over wifi without need of cables or being physically connected to the device. My passport is a portable drive that needs to be connected to your computer or laptop in order to back up your data. It would not allow to remote access to your data and you will need to be physically hooked up to the device to transfer data.