The ASUS SDRW-08D2S-U Portable External DVD Writer is a USB optical drive that allows users to easily read and write various types of optical media, such as CDs and DVDs. With its compact design, this portable external DVD writer is perfect for users who need a convenient and reliable optical drive that can be easily connected to their computer via USB. The ASUS brand ensures quality and compatibility with a wide range of devices, making it a practical choice for those in need of a reliable external DVD drive.