Advice on hard drives
External hard drive
An external hard drive is flexible in its use. You can connect and disconnect it time and again. You'll use an external hard drive mainly for sharing files between different devices. For example, move your vacation photos onto a drive to watch them on your smart TV.
Internal hard drive
You'll install an internal hard drive into a device, such as your desktop PC, laptop, NAS, or console. In order to do this, you'll first have to open your device so you can connect your hard drive between the rest of your components.