Your search for "qfx fan" revealed the following:
NEW Juniper SRX5600-FAN SRX Series Fan Tray for SRX5600
SKU: NSN-3962
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Cisco FAN-T1 Switch Fan Module for Catalyst 3850 and 3650 Series
SKU: NSN-0382
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Cisco N5K-C5696-FAN-B Front-to-Back Airflow (Port Side Intake) Fan Module
SKU: NSB-3226
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Cisco N56128-FAN-B Front-to-Back Air (Port Side Intake) Switch Fan Module
SKU: NSN-0290
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Cisco N2K-C2232-FAN-B Nexus 2000 Front-to-Back Airflow Switch Fan Module
SKU: NSB-7153
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Cisco N7K-C7018-FAN Nexus 7000 Series 18-Slot Fan Tray
SKU: NSH-2908
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Cisco UCSC-FAN-C240M4 UCS C240 M4 Front to Back Airflow Server Fan
SKU: NSN-9762
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Cisco DS-C96S-FAN-I MDS 9300 Series Port Side Intake Switch Fan
SKU: NSB-6897
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Cisco Meraki MA-FAN-18K F-B Fan Module for MS350 MS355 MS425 and MS450
SKU: NSN-6118
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW HPE Aruba JL714A CX 8360 Series Front-to-Back Airflow Switch Fan Module
SKU: NSN-4812
Condition: New
Shipping: Overnight Options
Warranty: 365 days