Your search for "Dell N1548" revealed the following:

NEW Dell S4048-ON 48x 10GB SFP+ 6x 40GB QSFP+ Front-to-Back Air 210-ADUW Switch

SKU: NSN-1862
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Dell S4148U-ON 48x 24x Uni SFP+ 2x QSFP+ 4x QSFP28 F-B No OS10 Switch

SKU: NSN-9962
Condition: New
Shipping: Overnight Options
Warranty: 365 days

Dell S4148U-ON-RA 48x (24x Unified) SFP+ 2x QSFP+ 4x QSFP28 B-F No OS10 Switch

SKU: NSB-9787
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW Dell S4148U-ON-RA 48x 24x Unified SFP+ 2x QSFP+ 4x QSFP28 B-F No OS10 Switch

SKU: NSN-9963
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Dell S3148 48x 1GB RJ45 2x 1GB Combo 2x 10GB SFP+ F-B Air 210-AIMR Switch

SKU: NSN-2078
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Dell S4148U-ON 48x 24x Unified SFP+ 2x QSFP+ 4x QSFP28 F-B OS10 Switch

SKU: NSN-3864
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

Dell S4148U-ON 210-ALRZ 48x 24x Unified SFP+ 2x QSFP+ 4x QSFP28 F-B OS10 Switch

SKU: NSH-9214
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW Dell S4148FE-ON 48x 10GB SFP+ 2x 40GB QSFP+ 4x QSFP28 F-B Air OS10 Switch

SKU: NSN-1909
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Dell S4148F-ON-RA 210-ALSR 48x SFP+ 4x QSFP28 2x QSFP+ B-F (No OS10) Switch

SKU: NSN-9931
Condition: New
Shipping: Overnight Options
Warranty: 365 days