Your search for "dell s3148" revealed the following:
NEW Dell S4048T-ON-RA 210-AHMV 48x 10GB Copper 6x 40GB QSFP+ B-F Air OS10 Switch
SKU: NSN-0178
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Dell S5148F-ON-RA 210-ANCL 48x 25GB SFP28 6x 100GB QSFP28 B-F No OS10 Switch
SKU: NSN-8132
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
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 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
Dell S4048T-ON 210-AHMR 48x 10GB Copper 6x 40GB QSFP+ F-B Air OS10 Switch
SKU: NSB-0132
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Dell 5548P PowerConnect 5500 48x 1GB PoE RJ-45 2x 10GB SFP+ Switch
SKU: NSN-3333
Condition: New
Shipping: Overnight Options
Warranty: 365 days
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 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
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