You can use the 13.1072 MHz, 12.8 MHz, 12.288 MHz, and 10.24 MHz timebases to generate data rates. The FD-116xx supports data rates (fs) between 500 Samples/s and 102.4 kSamples/s. By default, NI-DAQmx automatically chooses the most suitable timebase for a selected data rate. You can also manually select a timebase through the NI-DAQmx API. Refer to Timebases in this guide and the FD-116xx Specifications for information about choosing the correct timebase for your data rate.