An External DVD Drive is a portable device that allows users to read and write data on DVDs and CDs. Unlike internal drives, which are built into computers, external drives connect via USB ports, making them compatible with laptops and desktops that lack optical drives. They are useful for playing movies, installing software, or backing up files. These drives are typically lightweight and easy to carry, making them ideal for travel. Many models support various disc formats, including DVD-R, DVD+R, and CD-R. They often come with software for managing media and can be powered directly through the USB connection.