Kraszmyl :
So I know everyone hates Windows 8RT and all but why not mention that it should work fine with all RT devices and they even have one on their list of compatible tested devices.
It has a full size and a micro USB port. The inclusion of a full-size port implies compatibility with any device with a full-size USB port, including laptops, desktops, and Windows tablets. The micro USB port isn't compatible with every device with a micro USB port. Only Android devices that support USB On The Go can use this as an external storage device. That micro USB port is what makes this special and it's why the article points out Android phones and tablets. If you have a Surface RT you can just use any standard USB drive you want, even external hard drives.