I would certainly not say cheaper
But you do have M series USB DAQ's that can support much higher update rates for Analog output generation
that would be NI USB 6251 and NI USB 6259.
Hope this helps
Thanks for your reply. I looked at the two DAQ boards. Yes, the output rate is way high enough to do the job. However, it also has 16 analog inputs that I don't need. Do they have any Analog Output DAQ boards which have such a high Analog output rate? I guess I just don't want to waste money on so many analog inputs...If it's just a couple of AIs, that's fine.
Thank you very much!