Your search for "QFX5110-48S" revealed the following:
Juniper QFX5110-48S-AFO 48x 10GB SFP+ 4x 100GB QSFP28 Front-to-Back Air Switch
SKU: NSH-8241
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Juniper QFX5110-48S-AFI 48x 10GB SFP+ 4x 100GB QSFP28 Back-to-Front Air Switch
SKU: NSH-8240
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Juniper QFX5110-48S-DC-AFI 48x 10GB SFP+ 4x 100GB QSFP28 B-F Airflow (DC) Switch
SKU: NSH-8242
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Juniper QFX5110-48S-AFO 48x 10GB SFP+ 4x 100GB QSFP28 F-B Airflow Switch
SKU: NSN-3621
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Juniper QFX5110-48S-DC-AFO 48x 10GB SFP+ 4x 100GB QSFP28 F-B Air (DC) Switch
SKU: NSN-3623
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Juniper QFX5110-48S-AFI 48x 10GB SFP+ 4x 100GB QSFP28 B-F Airflow Switch
SKU: NSN-3749
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Juniper QFX5110-48S-DC-AFI 48x 10GB SFP+ 4x 100GB QSFP28 B-F Air (DC) Switch
SKU: NSN-3622
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Juniper QFX5110-48S-DC-AFO 48x 10GB SFP+ 4x 100GB QSFP28 F-B Air (DC) Switch
SKU: NSH-8243
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days