Your search for "qfx fan" revealed the following:
NEW Juniper QFX5100-24Q-3AFO 24x 40GB QSFP+ 2x Mod Slot Front-to-Back Air Switch
SKU: NSN-1851
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 287.99
• 11 in stock
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Juniper QFX5220-32CD-AFO 32x 400GB QSFP56-DD Front-to-Back Airflow Switch
SKU: NSB-7928
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 14,906.99
• Only 2 remaining
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Juniper EX4300-FAN EX4300 Series Front-to-Back Airflow Switch Fan Module
SKU: NSH-8770
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 72.99
• Only 2 remaining
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HPE Aruba JL628A CX 8325 Series Front-to-Back Airflow Switch Fan
SKU: NSH-9537
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 817.99
• Only 2 remaining
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Extreme Brocade BR-MLXE-16-FAN MLXe Series Exhaust Fan Assembly Kit
SKU: NSB-6733
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 244.99
• Only 2 remaining
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Cisco N3K-C3048-FAN-B Nexus 3000 Front-to-Back Airflow (Port Side Intake) Fan
SKU: NSH-8062
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 69.99
• Only 2 remaining
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Arista FAN-7011M-F Enhanced Speed F-B Fan for 7280R3, 7050X3, 7132LB, 7050X4
SKU: NSB-5424
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 111.99
• 6 in stock
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Cisco NCS-1RU-FAN-RV NCS Series Back-to-Front Airflow Router Fan
SKU: NSB-8166
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 354.99
• Only 2 remaining
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Juniper QFX5210-64C-AFI QFX5210 Series 64x 100GB QSFP28 B-F Airflow Switch
SKU: NSH-8260
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 5,512.99
• Only 2 remaining
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NEW Arista FAN-7011M-F Enhanced Speed F-B Fan for 7280R3, 7050X3, 7132LB, 7050X4
SKU: NSN-5373
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 78.99
• 16 in stock
Call if you need more