I have six(6) SilverStone FN91 Fans for sale at $10.00 each shipped. Specs as follows: 92mm x 92mm x25mm SPEED: 2100 rpm AIRFLOW: 36.89 cfm NOISE LEVEL: 26 dba Ultra maglev oil protection bearing system Vibration dampening pads included 4 pcs 3 pin to 4 pin adapter Screws 4 pcs Fits Pandora Box Perfectly. I will accept Paypal. Thanks JOHN N4HXL