Baud Rate up to 115.2Kbps. COM Port assignments maintained across reboot. Designed to make serial port expansion quick and easy. Powered by the USB port - no external power adapter required. Single cable design for portability. Integrated'DI USB UART Chip. Compatible with Windows Mac OS and Linux. 6-foot cable length for connecting to devices without having to be too close. USB to Straight-Through RS232 Serial Adapter.