One Stop Systems
4U Pro 16 Slot
60
16.10.2 How to remove Fan
Loose n the thumbscrew and slowly pull the fan out, see photos below.
16.11
Fan Foam Air Filter
The 4UP can be configured to come with fan foam air filters with minimal airflow resistance to prevent dust from entering the expansion unit.
You can easily remove and clean the filter. To access the foam air filter, simply remove the fan first and pull the filter out, see photos below.