Your search for "Dell S3048" revealed the following:
NEW Dell S4048T-ON-RA 210-AHMV 48x 10GB Copper 6x 40GB QSFP+ B-F No OS10 Switch
SKU: NSN-9961
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Dell S5248F-ON-RA 48x 25GB SFP 2x 200GB QSFP28-DD 4x QSFP B-F OS10 Switch
SKU: NSN-8138
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Dell S5248F-ON-RA 48x 25GB SFP28 2x 200GB QSFP28-DD 4x QSFP28 B-F No OS10 Switch
SKU: NSB-9763
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Dell S5148F-ON-RA 210-ANCL 48x 25GB SFP28 6x 100GB QSFP28 B-F OS10 Switch
SKU: NSN-9953
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Dell S4148T-ON 48x 10GB Copper 2x 40GB QSFP+ 4x QSFP28 F-B No OS10 Switch
SKU: NSN-9964
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Dell S4148T-ON-RA 48x 10GB Copper 2x 40GB QSFP+ 4x QSFP28 B-F OS10 Switch
SKU: NSN-8125
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Dell N3248TE-ON 48x 1GB RJ45 4x 10GB SFP+ 2x 100GB QSFP28 F-B Air OS6 Switch
SKU: NSB-8625
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Dell N3248TE-ON 48x 1GB RJ45 4x 10GB SFP+ 2x QSFP28 F-B Air OS6 Switch
SKU: NSN-9969
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Dell S5248F-ON 48x 25GB SFP28 2x 200GB QSFP28-DD 4x 100GB QSFP28 F-B OS10 Switch
SKU: NSH-9215
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Dell N3248TE-ON-RA 48x 1GB RJ45 4x 10GB SFP+ 2x QSFP28 B-F Air OS10 Switch
SKU: NSN-9971
Condition: New
Shipping: Overnight Options
Warranty: 365 days