Your search for "slx fan" revealed the following:

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

SKU: NSB-7095
Condition: Seller refurbished
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 Juniper JNP-FAN-1RU MX Series Router Fan Tray for MX204

SKU: NSN-0739
Condition: New
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

Extreme EN-SLX-9640-24S-AC-F 24x 10GB SFP+ 4x 100GB QSFP28 F-B Airflow Switch

SKU: NSH-8534
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW Cisco ASR-9904-FAN ASR 9000 9904 1x Fan Tray/Module Router

SKU: NSN-3598
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

Juniper QFX5100-96S-FANAFO Front-to-Back Airflow Switch Fan Module

SKU: NSH-9449
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

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

SKU: NSN-9545
Condition: New
Shipping: Overnight Options
Warranty: 365 days

Juniper EX4300-48MP-FAN EX4300 Series Front-to-Back Airflow Switch Fan Module

SKU: NSH-9693
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days