Dell Networking N3048 48-Port Gigabit Ethernet Switch (10G SFP+ Ports, Dual 200W AC) // STI Kansas City
48 Ports Poe Ethernet Switch With 48 Poe Ports Power To Camera, Wireless Ap, With 48 10/100m 2 Port 1000m 2 Port Sfp Combo - Network Switches - AliExpress
48-Port Managed Gigabit PoE+ Switch with 4 10G SFP+ Uplinks 740W TAA Compliant | Linksys: US
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