Your search for "qfx fan" revealed the following:

Juniper QFX10000-30C-M QFX 10000 Series 30x 100GB QSFP28 MACsec Switch Line Card

SKU: NSH-9971
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW Cisco N3K-C3064-FAN Back-to-Front Airflow (Port Side Exhaust) Fan Tray

SKU: NSN-5079
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Juniper JNP-FAN-1RU MX Series Router Fan Tray for MX204

SKU: NSN-0739
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Cisco C9407-FAN Catalyst 9400 Series 7 Slot Switch Chassis Fan Tray

SKU: NSN-4690
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Cisco N9K-C9504-FAN Nexus 9500 Series Switch Fan Tray

SKU: NSN-2861
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Cisco N2K-C2232-FAN-B Nexus 2000 Front-to-Back Airflow Switch Fan Module

SKU: NSN-0396
Condition: New
Shipping: Overnight Options
Warranty: 365 days

Juniper QFX-QSFP-40G-LR4 40GB BASE-LR4 1310nm SMF QSFP+ Transceiver

SKU: NSB-5039
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW Cisco ASR-9006-FAN-V2 ASR 9000 Series Router 2x Fan Tray

SKU: NSN-3448
Condition: New
Shipping: Overnight Options
Warranty: 365 days

Cisco ASR-9912-FAN ASR 9900 Series 9912 Router Fan Module

SKU: NSH-7098
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

Juniper JNP-FAN-1RU MX Series Router Fan Tray for MX204

SKU: NSH-7292
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days