How is the CP2102N different from the other CP210x devices? Should I use it?
The CP2102N is the latest CP210x device that generally meets or exceeds the feature set of all previous CP210x devices. The primary exception is that the CP2102N does not support Baud Rate Aliasing, but it is also more affordable than previous CP210x devices.
For a full list of all the differences between other CP210x products and the CP2102N, refer to AN976: