The SIIG 1-Port Industrial USB to RS-232 Db-9 (9-pin) Serial Adapter Cable is designed for industrial and commercial use, merging reliability and ease-of-use. This adapter allows for simple connectivity between USB and RS-232 Serial devices. With no need for driver or software installation, it provides a true plug and play solution. Compatible with Windows 8/7/Vista/XP and Mac OS X 10.1 or later, it's ideal for various applications requiring serial communication.