I bought this mini fan for my desktop terrarium, it was the perfect size.
Super quiet.
It was very easy to create a bracket for it.

This is a great fan for a small terrarium. I need to design a mount so that I have better options for placement.

Used these to cool my Raspberry pi. Perfect size and airflow and virtually silent. Good value.

I like the fan. By any chance do you have this size with a larger CFM?

Great delivery service and the fans work great. I am testing them out in the field for review and will update.