Your search for "qfx fan" revealed the following:
HPE Aruba JL714A CX 8360 Series Front-to-Back Airflow Switch Fan Module
SKU: NSB-8116
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 239.99
• Only 2 remaining
Call if you need more
Cisco UCS-FAN-6248UP UCS Series Server Fan Module
SKU: NSB-3068
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 72.99
• Only 2 remaining
Call if you need more
Arista FAN-7012M-BLUE 7050 Series Back-to-Front Airflow Fan Switch
SKU: NSB-5528
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 306.99
• Only 2 remaining
Call if you need more
Juniper JPSU-850W-AC-AFO QFX5100 Series 850W AC F-B Airflow Power Supply
SKU: NSH-9446
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 245.99
• Only 2 remaining
Call if you need more
Brocade 84-1000606-01 FCX Switch Series Assembly Fan Module
SKU: NSB-9103
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 24.99
• 4 in stock
Call if you need more
Arista FAN-7000H-R B-F Fan Module for 7050X3, 7060X, 7160, 7280R Series
SKU: NSB-5484
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 64.99
• Only 2 remaining
Call if you need more
Cisco ASR-9904-FAN ASR 9000 9904 1x Fan Tray/Module Router
SKU: NSH-7101
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 2,299.99
• Only 2 remaining
Call if you need more
NEW Juniper QFX5100-48T-AFO 48x MultiGB RJ45 6x 40GB QSFP+ F-B Air Switch
SKU: NSN-2506
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 1,757.99
• Only 1 remaining
Call if you need more
NEW Cisco ASR-9010-FAN-V2 ASR 9000 Series 9010 Router Fan Tray Version 2
SKU: NSN-1610
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 612.99
• 4 in stock
Call if you need more
Cisco ASR-9922-FAN ASR 9900 Series 12x Fan Router Fan Tray
SKU: NSH-7094
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 105.99
• 5 in stock
Call if you need more