Adds one RS-232 port to your USB port. RS-232 data & signals: TX, RX, RTS, CTS, DTR, DSR, DCD, RI, and GND. Supports 300 to 128, 000 baud (auto-sensing and self-adjusting) Supports Windows 7/Vista/XP/Server2008/Server2003/2000/98 (32-bit), Windows 7/Vista/XP/Server2008/Server2003 (64-bit), Win CE, Mac, and Linux. Supports remote wakeup and power management. Plug and play (hot-pluggable, data format auto-sensing and self-adjusting). Port-powered, no external power required. No IRQs required, no IRQ conflicts. CE/FCC/RoHS.

USB Specification Rev. 1.1 compliant -Support the RS232 Serial interface Over 1Mbps data transfer rate -Support remote wake-up and power management Specification -iMac G3, G4, or iBook with available USB port -IBM PC 486DX4-100 MHz CPU or higher Windows 98 SE /ME/2000/XP/Vista/Linux Mac 8.6 and later.