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Amazon.com: Dell Networking S4148F-ON 48P 10GbE SFP+ 2P QSFP+ 4P QSFP28 Switch S4148F-ON (Certified Refurbished) : Electronics
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247PW - Dell Networking S4148F-ON 48 x SFP+ Ports 10GBase-T + 2 x QSFP+ Ports 40GbE + 4 x QSFP28 Ports 100GbE Layer 3 Managed 1U Rack-mountable Gigabit Ethernet Network Switch
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