Your search for "dell s4148" revealed the following:

Dell S5224F-ON-RA 24x 25GB SFP28 4x 100GB QSFP28 B-F Air No OS10 Switch

SKU: NSB-9767
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW Dell N1108T-ON N1100 Series 8x 1GB RJ45 2x 1GB Combo Switch

SKU: NSN-5276
Condition: New
Shipping: Overnight Options
Warranty: 365 days

Dell AFBR-79EBMZ-FT1 40GB BASE-SR MMF XW7J0 QSFP-40G-BIDI QSFP+ Transceiver

SKU: NSB-5947
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW Dell N2024P N2000 Series 24x 1GB PoE+ RJ45 2x 10GB SFP+ EMC Switch

SKU: NSN-3033
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Dell S5224F-ON-RA 24x 25GB SFP28 4x 100GB QSFP28 B-F Air OS10 Switch

SKU: NSN-8136
Condition: New
Shipping: Overnight Options
Warranty: 365 days

Dell Z9332F-ON Z-Series 32x 400GB QSFP-DD Front-to-Back Airflow OS10 Switch

SKU: NSB-6594
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW Dell QSFP-40G-PSM4-LR 2XJHY 40GB BASE-LR4 1310nm SMF 2XJHY QSFP+ Transceiver

SKU: NSN-0835
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW Dell 470-AAVO 1m 40GB QSFP+ to 4x 10GB SFP+ K9HPR Direct Attach Cable

SKU: NSN-8402
Condition: New
Shipping: Overnight Options
Warranty: 365 days

Dell N1124P-ON N1100 Series 24x 1GB PoE+ RJ45 4x 10GB SFP+ EMC Switch

SKU: NSH-9914
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW Dell S5212F-ON-RA 12x 25GB SFP28 3x 100GB QSFP28 B-B Air No OS10 Switch

SKU: NSN-9951
Condition: New
Shipping: Overnight Options
Warranty: 365 days