StarTech.com 17in (43cm) 1-Port USB to Serial Adapter Cable, USB-A to DB9 RS232, USB to RS232 Adapter, Prolific Chipset - M/M - USB to serial RS232 adapter; USB Powered; Prolific Chipset - Converts a USB port into an RS232 DB9 serial port - Windows, Mac or Linux; Works with your USB 1.0 or 2.0 ports - Baud Rate up to 921.6Kbps - USB to RS232 serial has a lightweight design