48-Port Gigabit Ethernet PoE+ Layer 2+ Managed Switch with Four 10G SF – UltraPoE
Amazon.com: 48 Port Gigabit PoE Switch Unmanaged with 48 Port IEEE802.3af/at PoE+@400W, 2 x 1G SFP, NICGIGA 50 Port Network Power Over Ethernet Switch, Desktop/Rackmount : Automotive
MokerLink Store - MokerLink 48 Port Gigabit Ethernet Switch with 2 SFP Ports
D-link 48-Port 10/100/1000 Base-T L3 Switch Black | Techinn
Cisco NCS5501 48-port 10GbE SFP Router w 6 x 100GE (NCS-5501)
Amazon.com: TP-Link 48 Port Gigabit Ethernet Switch | Plug and Play | Sturdy Metal w/ Shielded Ports | Rackmount | Fanless | Traffic Optimization | Unmanaged (TL-SG1048) , Black : Electronics