Amazon.com: 48 Port Gigabit Ethernet Switch Unmanaged + 2 x 1G SFP Port, NICGIGA Network Switch, Rack Mount, Plug and Play : Electronics
48-Port Managed Gigabit PoE+ Switch with 4 10G SFP+ Uplinks 740W TAA Compliant | Linksys: US
Amazon.com: YuanLey 48 Port Gigabit PoE Switch Unmanaged with 2 1000Mbps SFP Uplink, 50 Port 802.3af/at 800W High Power PoE+ Network Switch, Metal Rackmount Power Over Ethernet Switch : Electronics
Tp-link 48-port Gigabit Unmanaged Poe Switch 4-port Sfp Fiber Up 396w Each Port 30w (tl-sg1452p) - Network Switches - AliExpress