Features Ugreen connecting cable with USB and RS232 (DB9) connections. This cable is designed to connect devices with a DB9 (RS232) connection (modems, ISDN terminals, cameras, sticker printers, barcode scanners, etc.) to a computer with a USB connection. Supports up to 1Mbps data transfer rate; *Connections: Standard USB A plug - DB9 (9 pins) RS232 connector; *Chip and supported systems: PL-2303 chip, easily compatible with most operating systems Windows (10/8.1/8/7XP), Mac, Linux, etc;