Your search for "XN-FAN-001-F" revealed the following:

NEW Extreme XN-FAN-001-F VSP 7400 Series Front-to-Back Airflow Switch Fan

SKU: NSN-4653
Condition: New
Shipping: Overnight Options
Warranty: 365 days

Extreme XN-FAN-001-F VSP 7400 Series Front-to-Back Airflow Switch Fan

SKU: NSH-8531
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days