This USB to 4-Port RS232 Serial Splitter supports convert USB port to RS232 serial port. It can easily be converted between the computer's USB port and universal serial port, It is used in places where is not or not enough serial port. More convenient to communicate with other devices. Providing a fast access for computer without serial ports (4 RS232 ports can work at the same time).

*Support USB2.0, USB1.0
* Support 4-Port RS232 Serial work at the same time
* Support multiple operating systems, need to install drivers.
* Support remote wakeup/energy saving mode
*Support the common MODEN contact signals of RTS, DTR, DCD.RI, DRS, CTS
* Support bidirectional transmission, transmission without delay.