The Plextor PX-M402U Digital Video Converter Unit is a converter box that allows for analog to digital video capture. It features Component RCA output and Composite RCA input interfaces, making it compatible with a variety of video sources. The unit is designed with a USB 2.0 port for external connectivity and internal interfaces, making it easy to connect to a computer for video conversion. With its sleek design and reliable brand reputation, the Plextor PX-M402U is a great option for those looking to digitize their old VHS tapes or other analog videos.