Yes, External USB hard drive - Truth Revealed.
A portable external hard drive is a storage device that can be connected to your computer via a USB or Fire-wire connection.
Due to the high storage capacity, people often use it to store media as backups. One of the biggest disadvantages of using an external hard drive is that you have to take your entire computer or laptop with you while carrying your data. However, external hard drives are portable devices that allow you to store data in a safe place.
There may be problems with the power cable if the external hard drive does not appear. Desktop external drives, however, have special power cables for their internal hard drives. USB stick and get power from it, so a separate power source is not required.
Are you looking for a new hard drive for your PC, you should know that external hard drives are often more expensive than their internal counterparts and not as reliable.
In general People assume that they have the copy of data available on USB external Hard drive. (while backup or after backup never checked that it REALLY copyied the data?)