I bought a K8055 for training with labview. Now I want to design a frequency generator. I didn’t find the maximum output frequency of the board. Can you give me the technical details?

-Maximum output frequency

-Maximum frequency measurement / sampling rate

We would like to use for generating a frequency of 0-30Hz and measuring a frequency of 0-300Hz. Is this possible?

You can use the counter function of digital inputs 1 and 2 to measure the frequency.
It can count frequency up to about 2kHz if duty cycle is about 50%.
Here you’ll find the data and manual: velleman.eu/be/en/product/view/?id=351346