Ubiquiti Networks, UniFi, 48 Port Managed PoE Switch with 32 PoE+ (802.3at) and 4 1GB SFP Ports, USW-48-POE - WLANMall
48-Port Managed Gigabit Ethernet Switch | Linksys | 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
Dell Networking N3048 48-Port Gigabit Ethernet Switch (10G SFP+ Ports, Dual 200W AC) // STI Kansas City
48-Port Gigabit Ethernet L2+ Aggregation Switch, 48x GE RJ45 Ports with 4x 10GE SFP+ Uplinks, Support Stacking
Amazon.com: TP-Link 48 Port Gigabit Ethernet Switch | Plug and Play | Sturdy Metal w/ Shielded Ports | Rackmount | Fanless | Limited Lifetime Protection | Traffic Optimization | Unmanaged (TL-SG1048) , Black : Electronics
48 Port Switches: Gigabit, PoE, & More | NETGEAR
48-Port Managed Gigabit Ethernet Switch | Linksys | Linksys: US