Your search for "qfx fan" revealed the following:
Juniper QFX-SFP-1GE-LX 1GB BASE-LX 1310nm SMF LC SFP Transceiver
SKU: NSB-3311
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Arista DCS-7050QX-32-F 32x 40GB QSFP+ Front-to-Back Airflow Switch
SKU: NSN-2834
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW HPE Aruba R0X32A CX 6400 Series Switch Fan Tray
SKU: NSN-2551
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Juniper QFX-QSFP-DAC-1M 1m 40GB QSFP+ Direct Attach Copper Cable
SKU: NSN-5826
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW nVidia Mellanox MSN3700-CS2R 32x 100GB QSFP28 F-B Airflow (C2P) Onyx Switch
SKU: NSN-9639
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Cisco ASR-920-FAN-TRAY ASR 920 Series Router Fan Tray
SKU: NSH-4612
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Juniper JPSU-650W-AC-AFI QFX5100 Series 650W AC B-F Air Switch Power Supply
SKU: NSB-0152
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Arista FAN-7100-R Back-to-Front Air Switch Fan Module for 7048 and 7100 Series
SKU: NSH-7156
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Arista DCS-7280QR-C36-M-F 24x 40G QSFP+ 12x 100G QSFP F-R Airflow Switch
SKU: NSN-1841
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Cisco N2K-C2348TQ 48x 10GB Copper 6x 40GB QSFP+ B-F Airflow Fabric Extender
SKU: NSH-5822
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days