The interface of the connection of the HDD is the connection with the computer, therefore when you buy an HDD you should verify that your computer has the relevant connection slot compatible with the HDD interface.
The convenient USB connection provides a possibility of connecting an external HDD to almost any modern computer and to handle the data stored therein both at work and at home.
Standard USB 2.0 connection:
During the next years the USB 2.0 will be replaced by the new USB 3.0 interface:
