Intake lip for 90mm EDF

This is a plug-on intake lips for 90mm EDF, originally made for a Schuebeler DS51 case, but should fit most other 90mm fans too, with a little rescaling. Inner diameter is 95mm, scale according to your needs.

An intake lip can dramatically improve performance for an EDF, especially in an 'Open Duct' setup as it avoids the airflow from separating at the fan inlet.