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

NEW Cisco N56128-FAN-B Front-to-Back Air (Port Side Intake) Switch Fan Module

SKU: NSN-0290
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW HPE Aruba JL714A CX 8360 Series Front-to-Back Airflow Switch Fan Module

SKU: NSN-4812
Condition: New
Shipping: Overnight Options
Warranty: 365 days

Cisco ASR-920-FAN-M ASR920 Series Fan for Router Modular Chassis

SKU: NSH-4613
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW Juniper QFX5100-FAN-AFO EX4600 Series Front-to-Back Air Switch Fan Module

SKU: NSN-1361
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW HPE Aruba JL481A CX 8320 Series Front-to-Back Airflow Switch Fan

SKU: NSN-5793
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Juniper EX4400-FAN-AFI EX4400 Series Switch Fan Module

SKU: NSN-1315
Condition: New
Shipping: Overnight Options
Warranty: 365 days

HPE Aruba JL631A CX 8325 Series Back-to-Front Airflow Switch Fan

SKU: NSB-5534
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW Cisco N5K-C5020-FAN Nexus 5020 Series Switch 1x Fan Module

SKU: NSN-0369
Condition: New
Shipping: Overnight Options
Warranty: 365 days

Juniper QFX5110-FANAFO QFX5120 Series Front-to-Back Airflow Switch Fan Module

SKU: NSB-0380
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

Cisco N5K-C5696-FAN Back-to-Front Airflow (Port Side Exhaust) Fan Module

SKU: NSB-7096
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days