Top-Longer USB Serial USB RS232 Cable Adapter USB to RS232 Serial DB9 9 Pin Com Port Adapter Converter With standard USB Type A Male to standard 9-pin DB9 RS-232 serial connector; PL-2303 Chipset for widest possible compatibility with Windows (10/8.1/8/7XP), Mac, Linux, etc; Powered by USB port, no external power adapter required. Simple installation, plug & play after one time driver installation; USB serial adapter allows any PC to connect serial devices and programs that communicate through COM ports; Designed for connecting Serial devices such as DB9 equipped PCs, routers, routers, GPS, barcode scanners, label writers, serial modems, digital cameras, card readers, palm PCs and digital organizers, etc