The Original USB to Serial Converter Dynex 16" USB to DB9 Serial Adapter DX-UBDB9 is a reliable and efficient adapter converter from Belkin. With a USB connector on one end and a Serial (RS-232) male connector on the other, this adapter allows for easy connectivity between your computer and various devices. Specifically designed for compatibility with a DB9 model, this adapter provides a seamless and convenient solution for converting USB to Serial connections in a wide range of computer networking situations. Its durable construction and brand reputation make it a valuable addition to your computer accessories collection.