Amazon.com: NETGEAR 48-Port Gigabit Ethernet Smart Switch (GS748T) - Managed, with 2 x 1G SFP and 2 x 1G Combo, Desktop or Rackmount, and Limited Lifetime Protection : Electronics
48-Port Managed Gigabit PoE+ Switch with 4 10G SFP+ Uplinks 740W TAA Compliant | Linksys: US
Dell Networking N3048 48-Port Gigabit Ethernet Switch (10G SFP+ Ports, Dual 200W AC) // STI Kansas City