Your search for "QFX FAN" revealed the following:
NEW Cisco NXA-FAN-30CFM-F Nexus 9300 B-F (Port Side Exhaust) Fan Module
SKU: NSN-9770
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Cisco C4KX-FAN-F Catalyst 4500-X Series Back-to-Front Cooling Switch Fan
SKU: NSH-7066
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Juniper JPSU-850W-AC-AFI QFX5100 Series 850W AC B-F Airflow Power Supply
SKU: NSN-0275
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Cisco NXA-FAN-65CFM-PE Back-to-Front Airflow (Port Side Exhaust) Switch Fan
SKU: NSN-8261
Condition: New
Shipping: Overnight Options
Warranty: 365 days
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
Ruckus Brocade ICX7750-FAN-E Fan Kit of 4 - F-B Airflow (Port Side Intake)
SKU: NSN-4952
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Juniper JNP-3000W-AC-AFO AC F-B PSU for QFX5230, QFX5700 and ACX PTX Routers
SKU: NSB-1020
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Juniper QFX-PFA-4Q 4x 40GB QSFP+ Packet Flow Accelerator Switch Module
SKU: NSN-4856
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Cisco NXA-FAN-65CFM-PE Back-to-Front Airflow (Port Side Exhaust) Switch Fan
SKU: NSH-8371
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Cisco NXA-FAN-65CFM-PI Front-to-Back Airflow (Port Side Intake) Switch Fan
SKU: NSN-4647
Condition: New
Shipping: Overnight Options
Warranty: 365 days