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
Ubiquiti Networks UniFi Pro PoE 48-Port Gigabit USW-PRO-48-POE
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TP-Link 48 Port Gigabit Ethernet Switch | Plug and Play | Sturdy Metal w/ Shielded
Cisco SF300-48P 48-Port 10/100 PoE Managed Switch
Cisco 48-Port 10/100 Managed Switch with Gigabit Uplinks (SRW248G4-K9-NA)
NETGEAR 48 Port GbE PoE+ Smart Managed Pro Switch, 4 SFP, 380W (GS752TPv2) - GS752TP-200NAS - -