External CD DVD RW drives are optical disc drives that can be used to read and write optical discs outside of a computer. They are typically connected to a computer by a USB cable, but can also be connected by Firewire, eSATA, or Thunderbolt. 

External CD DVD RW drives come in a variety of shapes and sizes, and can be used to read and write a variety of optical discs, including CD-ROMs, CD-Rs, CD-RWs, DVDs, and Blu-ray discs. They are typically used to back up data, install software, or watch movies. 

Most external CD DVD RW drives connect to a …