Your search for "Dell S4112" revealed the following:

NEW Dell N3248TE-ON 48x 1GB RJ45 4x 10GB SFP+ 2x QSFP28 F-B Air OS10 Switch

SKU: NSN-9972
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

Dell N2024P N2048P 7024P 7048P Delta DPST-1000DB A Power Supply

SKU: NSB-2066
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW Brocade DL-320-0001 24x 8GB Fibre Channel SFP (8x Active) SAN Switch

SKU: NSN-9700
Condition: New
Shipping: Overnight Options
Warranty: 365 days

Dell Brocade DL-320-0005 300 Series 24x 8GB FC (16x Active) SAN Switch

SKU: NSH-6768
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days