The Gear Head Mobile Slim External Optical Drive CDSL07U2S is a portable CD/DVD drive designed for use with computers, laptops, and other devices. With its sleek and slim design, it is ideal for on-the-go use. The Gear Head brand ensures quality and reliability, while the untested aspect indicates that it may not have been fully tested for functionality before being listed for sale. Ideal for those who need a compact and convenient external drive for various optical media needs.