This is a newly product that use the chip. The provides a convenient for connecting a RS232 like asynchronous device to bus (USB) host. The CH340G is perfectly for 98//7/8/systems and can emulate on most operating systems, allowing existing applications base on port to be easily ported and USB connection without having to rewrited The port software applies a traditional port. The cable mainly used in communication, can be used in 51SCM, ARM and other application scenario. for Ideal USB debugs cord for Vendor re-write, router, flashing firmware on hard drive