It's real COM Port in your computer, high compatible
with serial type device.
* Provides one DB9 RS232 ports
* 16C550 compatible UART controller on-board
* 16 byte transmit-receive FIFO (UART)* Programmable baud rate generator* Fast data rates up to 115200bytes/s (serial ports)
* Software programmable mode selects* Works with various types of RS232 serial devices including modems,
PDAs, label printers, bar code scanners, digital cameras, and more
* Supports Windows® DOS/95/98/ME/NT/2000, XP, Server 2003 ,Vista and Linux