Your search for "nxa-fan" revealed the following:

NEW Cisco C6807-XL-FAN Catalyst 6807 Series Switch 9x Fan Tray

SKU: NSN-3096
Condition: New
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

Cisco N3K-C3048-FAN Nexus 3000 Back-to-Front Airflow (Port Side Exhaust) Fan

SKU: NSH-5308
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW Cisco N9K-C9504 Nexus 9500 Series 4x Line Card Slot Switch Chassis

SKU: NSN-2217
Condition: New
Shipping: Overnight Options
Warranty: 365 days

Arista DCS-7308X-FM-F (Integrated Fan) Front-to-Back Airflow Fabric-X Module

SKU: NSH-9655
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

Cisco N7K-C7009-FAN Nexus 7000 Series 9-Slot Switch Fan Tray

SKU: NSH-2620
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW Juniper QFX5100-FAN-AFO QFX5100 Series F-B Airflow Switch Fan Module

SKU: NSN-0283
Condition: New
Shipping: Overnight Options
Warranty: 365 days

Juniper QFX520048Y-FAN-AO QFX5200 Series Front-to-Back Airflow Fan Module

SKU: NSB-5047
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW Cisco NXA-PHV-1100W-PE 1100W AC Platinum HV-AC-DC Back-to-Front Airflow PSU

SKU: NSN-8511
Condition: New
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