An HP USB external DVD RW drive is a portable, plug-and-play device that allows users to read, write, and rewrite data on CDs and DVDs using a USB connection, eliminating the need for external power. It features a sleek, low-profile design and is compatible with Windows and Mac operating systems. The drive supports various read/write speeds, offers double-layer recording for faster burning, and can be connected to PCs and even some TVs.