This USB to RS-232 Serial Cable allows you to connect a RS-232 serial device such as a modem to a USB 2.0 port on your Desktop computer or Laptop PC. Connect a RS-232 serial device such as a modem or PDA to a USB 2.0 port on your computer. Supports RS-232 serial interface DB25 or DB9 with over 1Mbps date transfer rate. This USB to RS-232 Serial Cable can support remote Wake-up and power management. Easy installation with Universal Plug and Play. This cable has USB specification revision 1.1 & 2.0 and is compliant with Windows 7/Vista/XP/2000/ME/98SE and Mac OS 10.110.6/OSX/Linux.