Zyxel XGS3600-28F 20-port GbE Fiber L2 Switch with Four GbE Combo Ports and Four 10G Fiber Ports | ZyxelGuard.com
SM977A-ST, Pro Switching System Plus A/B Switch Cards, Fiber Optic - Black Box
8 Port Ethernet Fiber Switch, 100 Mbps 6 Optisk Port SC RJ45 Port Ethernet Fiber Media Converter Fiber Transceiver med LED-indikator : Amazon.se: Elektronik