One problem it doesn't say DTE or DCE so is CTS in or out? Also there are lots of pins, so it would be better to have a choice of other pins like RI or DCD.
I took a FTDI interface and connected it and was able to do 921600 baud (over a very short cable). I know it is only rated to 230400 but I was able to use it at higher speeds to do some data dumps. This is for some equipment that has an RS232 interface, and I have a PC that has an RS232 serial connector, so when you need to connect this kind of port, this product makes it very easy.